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As one of the core technologies of new energy vehicles, power battery technology plays an important role in improving vehicle cruising range and safety, reducing user’s use cost and improving driving experience. To this end, Guangzhou Automobile Group has always attached great importance to the research and development and innovation of power battery technology, and has made important breakthroughs.

As early as the Guangzhou Auto Show in 2023, Guangzhou Automobile Group announced a major breakthrough in the research and development of all-solid-state battery technology, which has the characteristics of high safety and large capacity and will be mass-produced in 2026.

On April 12th, on the Science and Technology Day of Guangzhou Automobile Group, Guangzhou Automobile Group officially released the all-solid-state battery technology, with an energy density of 400Wh/kg, which is expected to be the first to be used on related models of Haobo brand.

On this Science and Technology Day, Guangzhou Automobile Group focused on the process and application of autonomous driving technology. In the field of intelligent driving, Guangzhou Automobile Group has mastered many core technologies, including super parking that can complete parking in extreme space, one-button calling and driving, and cross-floor driving with large curvature slope, as well as high-speed NDA, urban NDA, traffic jam pilot TJP, etc. In the field of driverless driving, the demonstration operation of Robotaxi has been realized.

The auto-driving solution with no map and pure vision launched on this Science and Technology Day will let vehicles get rid of sensors such as laser radar, and instead perceive everything in a visual way like human beings, and get rid of the restrictions of high-precision maps. It is planned to be loaded in 2026 to achieve high-order intelligent driving.

(Proofreading/Deng Qiuxian)

　　Nowadays, domestic consumers are more and more accepting of new energy vehicles, and the extended-range hybrid models with both performance and endurance have attracted the attention of many friends. Li ONE is a relatively successful representative, and although this model to be introduced in this article is a latecomer, it has the technical blessing of Huawei, and its strength can’t be ignored. It is a medium-sized and large SUV- Wenjie M7.

　　Judging from the positioning of the medium and large SUV in the M7, it belongs to the high-end flagship model of the current sector, and the official guide price remains between 319,800 and 379,800 yuan. Personally, I agree with the design of the M7. Different from the M5, the M7 does not adopt the conventional new energy design concept, and the overall style is closer to the traditional fuel vehicle. And the eagle-eye headlights that are blackened further enhance the sporty temperament of the front of the car.

　　As for the lighting configuration, Wenjie M7 is equipped with conventional LED headlights, which provide basic functions such as adaptive far and near light and automatic headlights. Such as steering headlights, front fog lights and headlight cleaning devices are not used. Personally, as the top version of the M7, and the price is nearly 380,000, its lighting performance is indeed somewhat inferior.

　　The body side of the M7 is elegant and dynamic. Thanks to the body length of 5020mm, it looks very slender and atmospheric. In addition, the hidden door handle and sharp rim design can be regarded as the finishing touch of M7, which can bring people a good visual impression. Like the front face design, the rear style of the M7 is also very simple, and the combination of penetrating taillights and the headlights of the front have played a good echo effect.

　　How is the ride space? It can be said that many consumers are more concerned about it. If we only analyze the wheelbase of 2820mm, it seems that the M7 has no advantage over Li ONE, but the actual interior performance is quite satisfactory. With the mainstream 2+2+2 6-seat layout, the second row can’t pick out the slot points in terms of space performance and ride comfort.

　　In terms of interior, to be honest, the performance of the models owned by Wenjie is still very commendable in creating a sense of luxury. Take this top version of M7, which continues the minimalist family design language. The large-size display screen with suspension design gives the interior cockpit a strong avant-garde scientific and technological atmosphere. To talk about the place that I like most, it is that the details are decorated with wooden decorative boards, and at the same time, the electronic handle with crystal texture is used, which presents a sense of luxury that Li ONE can’t match.

　　The car system part can be regarded as a big selling point of M7. After all, thanks to Huawei’s technical blessing, this will naturally not let everyone down. Built-in HarmonyOS intelligent car machine system, the operation fluency and car machine function have reached an impeccable level. At the same time, in order to better deepen the positioning of the high-end flagship, the top model of this experience also applies the high-end configuration including 19 speakers’ advanced audio system, over 100-color interior atmosphere lights and rear seat massage, which undoubtedly improves the daily car experience.

　　In terms of hardware, the range extender uses a 1.5T four-cylinder engine, and the four-wheel drive version of the front and rear dual motors makes this M7 become a performance SUV. The comprehensive power of the motor has reached 330kW, and it has the maximum torque of 660 N m. If the book parameters can’t intuitively make everyone feel the strong performance of the M7, then the acceleration of 4.8 seconds and the comprehensive fuel consumption of WLTC as low as 1.09L/100km can definitely explain everything. Equipped with a 40kWh ternary lithium battery pack, this M7 can also get a pure electric cruising range of 200km.

　　On the whole, the combination of high performance and low fuel consumption is the reason why extended-range power models are highly sought after, and this M7 also inherits this fine tradition. In addition, the elegant and atmospheric appearance, luxurious and delicate interior and comfortable space are all reasons for potential consumers to ask about M7.

　　In recent years, people can often get a variety of health care products from WeChat and Weibo. These so-called "online celebrity health care products" are beautifully packaged and have different functions, ranging from losing weight to regulating immunity, from relieving fatigue to improving sleep, and the effects are also amazing. So where do these so-called "online celebrity health products" come from? Is it really as good as advertised?

　　At present, in the circle of friends and some e-commerce platforms, the sales of health care products are very hot, and many people have bought these so-called "online celebrity health care products".

　　The reporter randomly searched the health food on the Internet and found that it was really varied and had different functions. A lactoflavin, which promotes that you can lose 17 pounds after taking it for one month; A cellulose, which claims to enhance children’s immunity after taking it; A moonlight whitening pill said that pure Chinese medicine ingredients can whiten and lighten spots. However, on the website of the State Food and Drug Administration, there is no record information of these health foods at all, and these are not regular health foods. Police in many places across the country have also seized a large number of three-no health care products without formal manufacturers, accurate production dates and quality testing.

　　Chen Gang, deputy head of the food and drug and environmental crime investigation detachment of Nantong Public Security Bureau, Jiangsu Province, said that so far this year, 160 food and drug cases have been cracked and 326 suspects have been arrested. Cases of selling "Three No-Health Foods" on the Internet have shown a high incidence.

　　Recently, Nantong Public Security Bureau cracked a case of inter-provincial sale of three-no-health food through the Internet, and destroyed a production den hidden in a farmhouse. Workers work in this den during the day and live here at night.

　　According to the police investigating the case, most of these three kinds of health care products are dirty and messy, and the formula is similar, which has remained unchanged for many years. Sun Moumou, a manufacturer of Sanwu health care products, introduced a classic formula of sexual health care products that has been circulating in the industry for many years.

　　According to the manufacturer of three-no health care products, the formula for making these sexual health care products has not changed for many years, either adding sildenafil to starch or adding silex to starch. So is it harmful to human body to take the health care products made according to this formula? The manufacturer Sun Moumou argued: "Like high blood pressure and heart disease, if you eat it in your stomach, there is no reaction. After eating it in your mouth, you can immediately solve it by drinking cold water."

　　Silex and sildenafil, two raw materials, are prohibited by the state in food. This kind of medicine is not as all is forgiven as he said. Patients with hypertension, heart disease and renal insufficiency will cause arrhythmia and other problems after taking this kind of medicine.

　　Not only the formula of this kind of sexual health food has remained unchanged for many years, but also the formula of the three slimming health food has been similar for many years. Not long ago, when Ms. Zhang was brushing her circle of friends, she saw an advertisement for a weight-loss product, claiming that it could accelerate the metabolism of the body on the basis of removing toxins from the body. However, after Ms. Zhang ate it for a while, she suffered from liver and kidney function damage.

　　Subsequently, the reporter sent this online celebrity slimming product to Nantong Food and Drug and Environmental Crime Investigation Detachment for inspection. The test found that this weight-loss product contains sibutramine, a drug prohibited by the state.

　　Fan Yaohui, deputy director of Nantong Food and Drug Administration, said: "Sibutramine has the effects of excitement and food inhibition, which may cause serious side effects such as elevated blood pressure, increased heart rate, anorexia, insomnia and abnormal liver function. Because sibutramine is relatively cheap, it has been repeatedly added to diet foods by criminals. "

　　It turns out that these amazing weight-loss products boasted by these functions are just sibutramine mixed with starch. In fact, many three-no-lose-weight health foods adopt this formula all the year round. However, the formula of the three-no health foods with different functions on the market is mostly "illegal drugs mixed with flour".

　　This formula of "flour+illegal drugs" has been used for many years and is not new. But why are these three-without-health products transformed into "online celebrity explosions" after many years, and their sales are extremely hot? One of the reasons is that they are constantly changing to meet the needs of consumers.

　　Maca health care, Shenbao tablets and probiotics are popular in the market, so they develop similar three-no products.

　　However, it is not enough to cater to the market demand. In order to turn these three-no health products into "online celebrity health products", it is necessary to use anti-counterfeiting to confuse the fake with the real.

　　Step 2: Make anti-counterfeiting to confuse the fake with the real.

　　In order to further gain the trust of consumers, some "three no" health foods have fabricated approval numbers by imitating regular health foods.

　　At this time, Sanwu health care products only look like real health care products, which is far from the expensive "online celebrity health care products". If these Sanwu health care products want to sell at a higher price, they need to make exquisite packaging and "foreign flavor" identity.

　　The exquisite packaging is also to set off the identity of the so-called "imported health care products". Some health products claim to come from Germany and the United States, but they are actually produced in small workshops in rural areas. As long as Sanwu health care products have been transformed in this way, their value has increased several times. A box of Sanwu health care products costing 3 yuan money can be sold for more than 70 yuan in one turn.

　　In this way, after layers of packaging, the three-no health care products produced in small workshops have become expensive "online celebrity health care products", and if you really want to sell these "online celebrity health care products", you have to promote them through advertising.

　　Yang Moumou, a second-level salesperson with the net name of "Huichuntang Batch Medicine", updates these health care products advertisements almost every day in his circle of friends, and sometimes even updates a few a day. According to him, the faster the advertisement is updated, the more customers you know, and the better the sales volume will naturally be.

　　Attracting consumers’ attention is only the first step in advertising. For these so-called online celebrity health foods, if people want to buy them with confidence, they have to blow more functions and ingredients.

　　A slimming health product claimed to be from Thailand, in which sibutramine is obviously banned, but the ingredients list says "seaweed powder", "green tea extract", "vitamin C" and "chitosan", and the corresponding efficacy is clearly marked after each ingredient, even the advertising language says "pure natural plant extract" and "safe without side effects". The effect of these advertisements is really good. The reporter searched this slimming product on an e-commerce platform and found that many online stores are selling it. I clicked on one of them and saw that the monthly sales reached more than 200.

　　Originally, it was a three-no health care product. After getting a beautiful package, adding an incomprehensible foreign language description, labeling it as genuine anti-counterfeiting, making up a false approval number, and then advertising and publicity, a "online celebrity health care product" was born. For many ordinary consumers, they simply can’t tell which are regular health care products and which are three-no health care products.

　　Regular health food is marked with the approval number of health food and the health food mark. Whether it is domestic health food or imported health food, you can find the health function, functional components, main raw materials and other information of health products on the website of the State Food and Drug Administration, but many consumers are unaware of it, which makes some unscrupulous merchants take advantage of it.

　　In recent years, criminal cases related to health food have generally shown an upward trend. In 2015, there were 432 first-instance judgments, 564 in 2016 and 741 in 2017. And the network has become a new channel for the sale of these three-no-health foods. After layers of packaging, these "three-no" products have transformed themselves into WeChat groups and friends circle, and become expensive "online celebrity health products". After eating these health care products, it is not effective to spend money for nothing. What is even more terrible is that spending money also eats your health. What should we do?

　　The regulatory authorities have the responsibility to strengthen network data monitoring and intensify the crackdown. Internet companies have the responsibility to manage their own platforms and prevent drugs and counterfeit and shoddy products that are explicitly prohibited by the state from circulating freely on the platforms. As consumers, we are also responsible for our own health. We should be careful about the sales promotion of our circle of friends. The more we blow it, the more we should polish our eyes.

　　CCTV News:Henan recently suffered from extremely heavy rainfall, and the National Defense General launched a flood control level II emergency response at 3 o’clock on the 21st. Continuous heavy rainfall has caused many roads and subways in Henan to be flooded and people trapped. Firefighters around the country heard of the "flood" and rushed to Henan. Today (July 21st) afternoon, a press conference on flood control in Henan Province was held to introduce the latest situation of flood control and rescue.

　　Heavy rains in Henan have caused 25 deaths and 7 lost contact.

　　According to incomplete statistics, since the 16th, this round of heavy rainfall has caused 1,240,737 people in 560 townships in 89 counties (cities, districts) in the province to be affected, 25 people were killed and 7 people were lost.

　　Large-scale merchants in Zhengzhou are well stocked, and these supermarkets are operating normally at present.

　　At the press conference held by the Information Office of Henan Provincial Government, Wu Fumin, deputy mayor of Zhengzhou Municipal Government, said in response to a reporter’s question that up to now, 7 of the 14 stores in Yonghui Supermarket are operating normally. Four of the seven stores in Dennis Department Store are operating normally, and 260 of the 360 stores in Dennis Convenience Store are operating normally; Of the 26 stores in Dennis Supermarket, 21 are operating normally. Seven of the 11 stores in Daha Supermarket are operating normally. Eleven of the 14 stores in 711 convenience store are operating normally, and supermarket stores such as Lotus, RT Mart, Beijing Hualian and Century Lianhua are all operating normally. At present, the commercial and trade circulation enterprises in Zhengzhou are all stable at full price, and the enterprises that are not operating normally are fully restoring their business status.

　　Xinhua News Agency, Beijing, June 21st　

　　Xinhua News Agency "Xinhua Viewpoint" reporters Li Shuangxi, Li Wei and Xie Ying

　　Recently, it is the peak period for college students to submit course papers, defend and review their graduation thesis. A survey by Xinhua Viewpoint reporter found that some college students are quietly using AI (artificial intelligence) writing software such as ChatGPT to write papers, or using AI to assist paper writing, such as listing outlines, polishing language and reducing repetition rate.

　　Will AI writing software encourage academic fraud? Should I care?

　　AI software to write papers

　　Cheng Guangyu (pseudonym), a junior in a university in Beijing, will hand in four course papers this semester, each of which is required to be about 3,000 words. Cheng Guangyu didn’t spend time reading literature, sorting out, extracting and writing. He stayed up all night before handing in his homework and finished his paper with ChatGPT.

　　"At first, I was worried about whether I could finish it. As a result, I gave ChatGPT a general direction, and it listed the outline of the paper and automatically continued to write, which was much better than me." Cheng Guangyu finished four papers in one night, and submitted them to the teacher after simple revision.

　　According to the investigation in some colleges and universities, some college students use ChatGPT to complete course assignments, final papers and even undergraduate or master’s thesis. "The threshold for undergraduate graduation thesis is low, and I have no scientific research ability. Many people’s undergraduate papers are extracted and pieced together online, and it is more convenient to hand them over to artificial intelligence now. " Qiao Yifan (a pseudonym), a senior student at a university in Wuhan, said.

　　AI writing software can be used in all aspects of paper writing, from outlining and writing some contents to polishing language and reducing repetition rate. However, a college student who has used AI writing software in a university in Hunan Province thinks that the effect of modifying and polishing articles with AI software is not bad, but it is not appropriate to use it for substantive research and elaboration of innovative ideas.

　　The reporter found that AI writing software similar to ChatGPT is not uncommon in China. For example, Zhichuang helps AI, the secret tower writes cats, draws pictures and writes quickly, etc., and generally supports the writing of articles and papers. In addition, there are many articles teaching how to write papers with AI software on websites such as Zhihu and Xiaohongshu. In the experience sharing, some netizens said: "The teacher can’t see it at all", "Praise the AI ? ? paper for being well written" and "gave me excellent papers".

　　During the interview, some college teachers also found the characteristics of AI papers. When examining an undergraduate’s thesis, a teacher majoring in international politics in a university in Jilin Province found that his thesis on Japanese culture was biased, with blunt and lengthy language and empty content. Under the teacher’s questioning, the students admitted that the paper was written in ChatGPT.

　　In addition, some papers written with AI software are full of mistakes. "If you check it carefully, you will find that the links of the cited papers can’t be opened, the author’s name can’t be searched, the publication time, journals, pages, SCI divisions and other contents of the papers are all false, and even some historical events involved are out of thin air." He Shiming, an associate professor at the School of Computer and Communication Engineering of Changsha University of Science and Technology, said.

　　"Help scientific research" or "encourage cheating"?

　　Can ChatGPT be used to assist thesis writing? Many college teachers are controversial about this, including those who support users, those who resolutely oppose it and those who demand that it is strictly prohibited.

　　It is understood that some foreign universities have explicitly issued regulations prohibiting the use of ChatGPT to write papers. In China, academic journals such as Journal of Jinan (Philosophy and Social Sciences Edition) and Journal of Tianjin Normal University (Basic Education Edition) have successively issued explanations on the use of artificial intelligence writing tools, indicating that if the author uses relevant tools in his paper creation, he should explain the degree of use in detail in his article.

　　For research purposes, Yang Zhiping, a professor of Marxism at Northeast Normal University, tried to use AI writing software. He found that in order for AI to provide correct ideas, it is necessary to constantly "feed" the corpus to AI. In the questions and answers with AI, the original vague research ideas gradually became clear. "It’s like exchanging ideas with an expert with encyclopedic knowledge. Through the collision of ideas, new academic viewpoints can be inspired." Yang Zhiping said.

　　"AI writing software is just like search tools such as Google and Baidu. When it first appeared, it always caused people’s panic." Yao Yuchun, dean of the Institute of Social Sciences of Jilin University, said, but fundamentally, AI writing software is still a tool. It is a product of science and technology and needs to be treated dialectically. If students only use it for limited purposes, such as searching documents, listing outlines, sorting out ideas, etc., it is understandable and cannot be banned.

　　Fu Weidong, a professor at the Department of Artificial Intelligence Education of Huazhong Normal University, believes that both manual writing and AI writing should be regarded as academic misconduct as long as they exceed the prescribed repetition rate according to the existing academic paper norms. In addition, AI writing is based on the retrieval and processing of existing knowledge. Repetition of sentences or plagiarism of ideas is inevitable, which will inevitably involve disputes over intellectual property rights and portrait rights, and should be strictly regulated.

　　A college teacher in Hunan province is worried that if students are allowed to use AI to write, it will not be conducive to cultivating students’ scientific research ability. In the long run, it is easy for students to develop inertia and form a bad academic atmosphere.

　　In addition, the information security problems that may be caused by AI software have also attracted attention. Li Huilai, a professor at the School of Artificial Intelligence of Jilin University, said that some countries in Europe wanted to "block" ChatGPT because of data security problems, because there was a hidden danger of "collecting, using and disclosing personal information without consent" when it grabbed data. Li Huilai pointed out that when domestic students use ChatGPT, it may lead to the abuse of domestic scientific research results, and there are data security risks.

　　Actively respond to the academic challenges brought by AI technology

　　Some industry experts believe that, like search tools, as a technology, the popularization and application of AI is irresistible. The application standards of AI writing tools should be formulated as soon as possible to standardize the scope of use; At the same time, change the traditional evaluation mechanism of students in colleges and universities, and provide AI writing detection tools for researchers. In addition, it is necessary to strengthen independent research and development in the field of artificial intelligence and master core technologies.

　　Xiong Bingqi, president of 21st Century Education Research Institute, believes that it is difficult to ban AI writing software, and we should try to "keep the devil in a bottle" and make clear the scope and degree of use of AI writing tools. "It is better to face up to it than to avoid it. Colleges and universities can even offer public courses using AI writing tools, and clearly teach students the norms, methods and academic ethics. "

　　He Shiming believes that the duplicate checking software used in colleges and universities has been difficult to cope with AI writing. At present, universities and academic journals lack special software to detect AI writing, and it is inevitable to "hang a leak" only by human eye recognition. It is hoped that relevant domestic institutions will develop software to identify AI writing, and provide a safer and more reliable anti-academic fraud system for colleges and universities.

　　In order to avoid the influence of AI writing, some foreign universities are reducing the open homework after class, and putting more emphasis on classroom homework, handwritten papers, group work and oral test.

　　Xie Di, an associate professor at the School of Public Administration of Hubei University, suggested that the education department should pay more attention to students’ problem consciousness, observe, understand and analyze the society’s nature, and increase the proportion of content with substance such as experiments and investigations, rather than overemphasizing the form.

　　ChatGPT has powerful functions and may bring a new scientific and technological revolution. Li Huilai believes that domestic research and development of artificial intelligence should be strengthened. At present, some domestic companies are also developing similar products, but they are still in the initial stage and cannot form strong competition with ChatGPT.

　　"It is necessary to use the window period to accelerate the development of Chinese AI applications and AI paper detection systems, and strengthen the independent research and development of artificial intelligence core technologies." Fu Weidong said.

On December 14th, "When nodules appear on the physical examination report" rushed to the hot search, with a reading of 140 million. It’s the year-end physical examination season again, and nodules, cysts, polyps, hyperplasia … migrant workers have exhausted their courage just by opening their year-end physical examination reports. On the 14th, the reporter interviewed experts from the Cancer Hospital affiliated to Chongqing University to teach you how to read the physical examination report and bring the correct way to open it.

Nodules: Nodules are not terrible, the key depends on the category.

Ma Huiwen, deputy director of the Department of Oncology, Cancer Hospital affiliated to Chongqing University, said that nodules refer to tangible localized round, oval or irregular substantive skin lesions, which are neither painful nor itchy.

In recent years, with the rapid development of medicine and more accurate examination equipment, the detection rate of pulmonary nodules, thyroid nodules and breast nodules is on the rise. Especially lung nodules and thyroid nodules, appear in the reports of many physical examination groups.

Nodules are not terrible, the key depends on the category. Whether it is lung nodule, thyroid nodule or breast nodule, the possibility of benign is the vast majority, which has no obvious influence on human body, so it is only necessary to observe without treatment. However, there are also some nodules that may be precancerous lesions or early cancer.

Pulmonary nodules: less than 5 mm, and low-dose CT can be reviewed every year.

Although pulmonary nodules are the scariest of all nodules. But first of all, it should be clear that pulmonary nodules are not equal to lung cancer.

The imaging manifestations of pulmonary nodules are focal, round-like, solid or sub-solid lung shadows with increased density, which can be isolated or multiple, without atelectasis, hilar lymphadenopathy and pleural effusion. Mainly divided into two categories: one is benign nodules or calcified nodules, and the other is nodules with uncertain nature.

Pulmonary nodule network diagram

Generally speaking, inflammation, tuberculosis, hamartoma and other diseases will also show small nodules. If the pulmonary nodule is less than 5 mm and is an isolated tiny nodule, only low-dose CT needs to be reviewed every year. If the nodule is 5-10 mm, it needs 3-6 months follow-up. Nodules larger than 10 mm, with burr and lobulated edges and uneven density inside nodules, can be clearly diagnosed by PET-CT and minimally invasive examination methods, and then treated according to the situation.

Even if it is highly suspected that the nodule is malignant, there is no need to panic. The success rate of early lung malignant tumor surgery can reach almost 100%, and the prognosis is good.

Thyroid nodule: Simple goiter is common.

In recent years, thyroid nodules are increasing year by year, and the increase in incidence depends largely on two factors: first, thyroid nodule disease is an age-related disease; Secondly, the existing population survey shows that the average life expectancy in most industrial countries is increasing. Generally speaking, the incidence of thyroid nodules in women is significantly higher than that in men, and simple goiter is more common in women.

Usually, thyroid nodules are found by neck color Doppler ultrasound, and TI-RADS will show how many grades the thyroid nodules are, so as to judge whether they are benign or cancerous. There are different ways to deal with different series:

Class 1-3: normal thyroid gland, diagnosable benign thyroid nodules, with a malignant risk of 0. If the nodule is large, it is recommended to follow up for half a year.

Class 4A: thyroid nodules with a certain possibility of malignancy, and the risk of malignancy is between 3% and 30%. Short-term (3-month) interval follow-up is recommended in clinic. Fine needle aspiration biopsy; If the biopsy result is negative, continue short-term follow-up.

Class 4B: thyroid nodules with fairly malignant potential, with a malignant risk ranging from 31% to 60%, and fine needle biopsy is recommended as the first choice in clinical practice; If the biopsy result is negative, repeat puncture at short intervals, or consider surgical treatment.

Class 4C: thyroid nodules with great possibility of malignancy, with the risk of malignancy ranging from 61% to 95%, and surgical treatment is recommended as the first choice in clinic; Surgical treatment after fine needle aspiration biopsy.

Category 5: Malignant thyroid nodules that can be diagnosed, with a malignant risk of > 94%, and immediate surgical treatment is recommended.

Category 6: Malignant nodules confirmed by pathology.

Breast nodules: 80% are mainly benign

Different types of breast nodules have different diseases. Breast nodules include proliferative nodules, neoplastic nodules, inflammatory nodules and so on. Specifically, breast nodules can be seen in various breast diseases, such as breast hyperplasia, breast cyst, breast fibroadenoma, plasma cell mastitis, breast cancer, etc. About 80% of them are mainly benign diseases.

The nature of nodules can be judged by BI-RADS classification of breast. The classification conclusions of 0 ~ 6 categories are made.

Class 0: Lesions cannot be evaluated comprehensively, and other imaging examinations are needed.

Class 1: negative signs, one-year follow-up.

Class 2: Considering benign changes, it is recommended to follow up regularly (once every June to December).

Category 3: Benign diseases are possible, but the follow-up period needs to be shortened (such as once every 3 to 6 months), and the proportion of malignant diseases at this level is less than 2%.

Category 4: Considering the possibility of malignant lesions (2%-95%), tissue biopsy is needed to further clarify. 4a: 3-8% malignant possibility, and follow-up for 6 months after obtaining benign cytological or histological examination results. 4b: Moderate quasi-malignant lesions, 9-49% malignant possibility. 4c: 50-94% malignant possibility, which does not represent the typical malignant characteristics of grade 5.

Category 5: highly suspected malignant lesions (almost identified as malignant diseases, > 95%), requiring surgical resection and biopsy.

Category 6: Malignant lesions confirmed by pathology.

It can be said that 0-3 categories can be judged as benign, and 4-6 categories need to be judged according to the actual situation. With this grading conclusion, the medical examiner can carry out physical management by combining his own medical history and signs.

Polyp: a benign tumor, some of which have a tendency to become malignant.

Ma Huiwen introduced that polyps may appear in many organs of the human body, such as nasal polyps, gallbladder polyps, stomach polyps, intestinal polyps and cervical polyps, but 80% of polyps occur in the gastrointestinal tract, especially in the colorectal region.

Some polyps occur because local mucosal tissues are stimulated by inflammation, and some are genetic mutations and genetic factors. In addition, the occurrence of polyps is also related to diet structure and living habits, for example, eating a lot of high-protein and high-fat foods, drinking alcohol for a long time, eating spicy irritants and so on. Polyp is a kind of benign tumor, and its recurrence rate is high, so it needs regular review, and some of them have the tendency of malignant transformation, which needs attention.

Intestinal polyp: The bigger the polyp, the higher the canceration rate.

Intestinal polyps are divided into non-neoplastic polyps and adenomatous polyps. Non-adenomatous polyps, such as inflammatory polyps and hyperplastic polyps, have little to do with the incidence of intestinal cancer. Adenomatous polyp is a recognized precancerous lesion. Studies have shown that more than 95% of colon cancer comes from colon adenoma, which is equivalent to a "time bomb". Of course, whether adenomatous polyp becomes cancerous is also related to the patient’s age, the number and size of polyps. Generally speaking, the probability of canceration of one or two polyps is not high, but the more the number, the higher the chance of canceration; The bigger the polyp, the higher the canceration rate. The canceration rate of polyps over 2 cm can reach 50%.

Intestinal polyp network diagram

Cervical polyp: Super soybean grain size can be minimally invasive resection.

Cervical polyps are the result of long-term stimulation of chronic cervicitis. Most of them are benign and have no obvious symptoms. A few patients will have bleeding symptoms similar to menstruation. Because cervical polyps will produce inflammatory secretions, it will destroy the vaginal physiological environment and reduce sperm vitality. Polyps will also form mucus plugs, which will prevent some semen from entering the uterus and affect pregnancy. If cervical polyps are found during pregnancy, they will slowly grow and bleed, which will affect the health during pregnancy.

Therefore, women should have regular gynecological examinations, and once cervical polyps are found, they should be treated under the guidance of a doctor. When the polyp is small, anti-inflammatory treatment can be taken first. If it exceeds the size of soybean, it can be removed by minimally invasive surgery. Pathological examination should be carried out after operation to confirm the nature of polyps and whether they are malignant. Like intestinal polyps, cervical polyps are easy to recur, so they should be reviewed regularly after operation.

Gallbladder polyp: adenomatous polyp larger than 1cm is at risk of canceration.

Gallbladder polyp is a polypoid lesion that originated in gallbladder, including cholesterol polyp, inflammatory polyp and adenomatous polyp, among which cholesterol polyp is the most common. Most patients have no clinical symptoms, and most of them find lesions during ultrasound examination. A few patients may have clinical symptoms, often manifested as recurrent right upper abdominal pain, radiation to the back, nausea, greasy, abdominal distension and so on. Gallbladder polyps are all benign diseases, but adenomatous polyps larger than 1 cm may be in danger of canceration and need to be surgically removed.

Nasal polyp: common benign tumor

Nasal polyp is a common benign tumor in the nose, which is mostly caused by long-term chronic inflammatory stimulation in the nose and is also related to heredity. Mainly manifested as increased nasal secretions, sometimes accompanied by sneezing, decreased sense of smell, severe nasal congestion, and even affect breathing and lead to hypoxia. When polyps are small, drugs can be used for local treatment, but surgery is the only treatment for growing nasal polyps.

Cyst: It can be regarded as a closed "blister"

Ma Huiwen introduced that cysts are also a benign disease, just like closed "blisters". The outer shell of the cyst is a fibrous cyst wall arranged by layers of cells with secretory function, and the cyst cavity is filled with clear colorless or yellowish, sterile and protein-rich cyst fluid.

Most cysts are formed for unknown reasons, both naturally and genetically. They are common in all parts of the body, and the common ones are liver, kidney and ovary. Small cysts generally have no clinical symptoms and are only found during routine physical examination without special treatment. However, when the cyst gradually increases, produces complications, and even tends to become malignant, it needs treatment.

Liver cyst: most of them will not become cancerous.

Hepatic cyst is a general term for all vesicular lesions that grow on the liver, and it is a common benign disease of the liver. There are more women than men, and the ratio of male to female is 1∶4. Its initial symptoms can begin at any age, but most of them occur at the age of 20 ~ 50, and most liver cysts will not become cancerous.

There are many types of hepatic cysts, such as congenital hepatic cysts, traumatic hepatic cysts, neoplastic hepatic cysts and inflammatory hepatic cysts. Usually, more than 90% of cysts are congenital hepatic cysts, and the hepatic cysts we usually say are also congenital hepatic cysts.

Bile cyst: slow growth, once a year, color ultrasound reexamination.

Most gallbladder cysts grow slowly, and their manifestations are different for everyone. They mainly show symptoms such as fullness after meals, loss of appetite, nausea and vomiting, and can also cause discomfort, dull pain or mild dull pain in the upper abdomen.

For simple hepatic cysts, abdominal color Doppler ultrasound is followed up regularly, usually once a year. When there are complications such as cyst rupture, pedicle torsion, intracapsular hemorrhage or huge compression of adjacent organs by cyst, the eater needs surgical treatment.

Ovarian cyst: Severe infertility.

Ovarian cyst is a kind of ovarian tumor. Here we talk about ovarian endometriosis cyst, which is also called "chocolate cyst" because its fluid is like chocolate. The most common symptom of chocolate cyst is pain, including dysmenorrhea, chronic pelvic pain, and acute abdominal pain. Another common hazard is abnormal menstruation, which can lead to infertility seriously, and a few of them will become malignant.

If the diameter is less than 5 cm, it is usually followed up for 3 months and then rechecked. If the cyst does not continue to grow up or disappear on its own, you don’t need to care too much; If the cyst does not disappear after half a year, or continues to grow, it should be treated according to the corresponding situation to further clarify its nature.

Network diagram of normal ovary and ovarian cyst　

Renal cyst: More than 10cm in diameter requires surgical treatment.

Renal cyst can be divided into simple renal cyst and hereditary renal cyst. Simple renal cyst is the most common benign lesion with abnormal structure in adult kidney, which can occur unilaterally or bilaterally. The main manifestations are intermittent dull pain in the waist, abdomen and back, and severe hematuria, hypertension and renal insufficiency will occur. The diagnosis can be made by B-ultrasound or CT.

Asymptomatic simple renal cyst does not need treatment, but it is necessary to follow up regularly for 6 months to 1 year; When cysts with a diameter of more than 5cm will compress the surrounding tissues and cause urinary tract obstruction, it is necessary to perform cystic fluid aspiration and inject sclerosing agent into the cyst. For cysts with a diameter of more than 10cm, surgery is needed.

Network diagram of normal kidney and renal cyst　

Breast cysts: 95% do not need special treatment.

In addition, breast experts from the Cancer Hospital affiliated to Chongqing University said that breast cysts can’t be regarded as breast diseases in a strict sense. 95% of breast cysts need special treatment, only regular observation, B-ultrasound every six months, and mammography every year for patients over 40 years old.

Hyperplasia: Pay attention to pathological hyperplasia.

Hyperplasia is divided into physiological hyperplasia and pathological hyperplasia. Physiological hyperplasia is sometimes beneficial to human body, and pathological hyperplasia is often harmful, but it does not mean that hyperplasia will definitely develop into cancer.

Bone hyperplasia: no discomfort and no special treatment.

X-ray examination often shows hyperplasia at joints, that is, "bone spurs", especially at cervical vertebrae, lumbar vertebrae and knee joints. Many elderly people think that bone spurs are diseases and find that they must be removed. Some people even listen to false advertisements and want to dissolve bones by taking medicine. Bone spur is usually considered as compensatory hyperplasia of human body, that is, it helps to support the body and stabilize the joints through hyperplasia. If it does not bring discomfort to the body, no special treatment is needed.

Prostatic Hyperplasia: No Evidence of Transformation from Benign Hyperplasia to Cancer

Most of the early BPH can be treated conservatively, and the effect is very good. There is no evidence of the transformation from benign prostatic hyperplasia to prostate cancer.

Breast hyperplasia: neither inflammation nor tumor.

Breast experts at the Cancer Hospital affiliated to Chongqing University said that mammary gland hyperplasia is a "popular disease", and there is no need to panic when it is detected by physical examination. Many people who are labeled as "mammary gland hyperplasia" do not really have breast diseases. About 70%~80% of women have mammary gland hyperplasia to varying degrees, mostly at the age of 25~45.

Hyperplasia is a phenomenon that the number of cells increases through division and reproduction. Hyperplasia in breast tissue is called breast hyperplasia, physiological hyperplasia and pathological hyperplasia. Physiological hyperplasia means that women may have periodic pain in one or both breasts before menstruation, and the pain disappears naturally after menstruation, which does not interfere with life, study and work. It is a normal physiological phenomenon and has nothing to do with tumors, and generally does not require medical treatment. Pathological hyperplasia, simply speaking, is sick, which requires a diagnosis from a doctor specializing in breast, and a biopsy to find out the extent of hyperplasia, whether it is general hyperplasia or atypical hyperplasia.

Does physiological hyperplasia not become cancerous? Mild hyperplasia of mammary glands has nothing to do with cancer, but it is caused by the long-term high estrogen level in women’s internal environment and stimulation of mammary duct, which is neither inflammation nor tumor.

If breast hyperplasia is serious, or accompanied by cysts, it is best to go to the hospital once every six months to prevent malignant transformation of benign breast diseases.

If it is "atypical hyperplasia", the chance of canceration is four times higher than that of the general population. If it is found during physical examination, it should be checked in the hospital regularly. Of course, women don’t have to worry too much. Breast hyperplasia does not mean the early stage of breast cancer.

There is no definite and effective treatment for hyperplasia of mammary glands. Some patients can often relieve themselves several months to 1-2 years after onset, and most of them do not need treatment. Patients with obvious symptoms and a wide range of lesions, those with severe pain, have affected their daily work and sleep, so they can take drugs under the guidance of professional doctors.　

Upstream journalist Zhu Ting

　　Massive information, instant interaction, free access … Nowadays, online reading has become the first reading choice for many young people, and it has the potential to replace traditional reading. However, the lack of supervision and mixed quality are the fatal wounds of online reading materials, and the proliferation of "pornography" is an epidemic of online literature in China.

　　Pornographic novels are on the list.

　　Yesterday, the reporter saw a reading list on the "Reading" channel of the famous domestic portal "Sohu", showing the most popular works on this website, many of which are original works on the Internet. This ranking is divided into more than ten categories, such as novels, biographies, youth campus and urban romance. Surprisingly, a large number of pornographic novels with naked titles are among them, and the categories of youth campus, urban romance, fantasy and chivalry and chivalry have become the hardest hit areas. Taking "Youth Campus" as an example, the novels on the list are Sexual Desire-Erupting Campus, Mafia Students, Men’s Desire for Color Campus, Diary of the Growth of a Lost Boy, and Spirit and Body in Prostitution. "Fantasy" is also the word "color", and the works on the list include Chronicle of Affair, The Best Rogue of the Millennium, The Best Rogue of Color, The Demon Wife’s Charming Concubine, The Demon Desire, and so on. In the "urban romance", it is full of cheating, incest and other themes, such as "Widow Spring: I and Widow Landlord" and "Damn temptation-starting with my mother-in-law! "Go to bed nanny" and so on.

　　Shocking content is obscene

　　Not only are the titles of these works shocking, but when you click in, the reporter finds that their contents are completely qualified to be obscene. The brief introduction of "Sexual Desire-Erosion Campus" is: "A young child’s decadent career in college is entangled with different women, and his classmates and teachers … are entangled in bed and are caught in sexual desire." "The Romance History of the Principal" says: "Zhang Bin, the principal of a middle school, did not hesitate to let his wife put a green hat on him in order to become the principal, and then when Zhang Bin, the principal, faced one woman after another, he got lost in the rolling world of mortals, and he had sex with more and more women, and then he became more and more vicious …" In addition to pornography and obscenity, some novels also took the opportunity to promote decadent outlook on life, such as "keyboard" by the author of "Forgetting the City" Whether it’s playing flowers or wandering around the world, the gray life track is not my intention. The sky changes, the earth changes, and the mood changes. Why am I immutable … "

　　Publish online for profit

　　The reading rate of these online erotic novels is amazing, and the click-through rate reaches tens or millions of times. In order to attract readers, some works also specially indicate their "gold content", such as the novel "Xiang Yan Life" in the category of "Martial Arts Xianxia", and the article specifically declares "Absolutely Xiang Yan". Some authors are unscrupulous and even openly "seek cooperation from publishers". The reporter learned that it has become a common phenomenon for pornographic novels to "go online" at present. With the increasingly fierce competition between original literature websites, more and more websites are trying to gain popularity through pornographic novels in order to make quick profits. Online works are easy to publish, spread quickly, and difficult to supervise, which makes the perpetrators have no fear.

　　Recently, the General Administration of Press and Publication has published a "blacklist" of 40 pornographic novels on the Internet, which requires all localities to investigate and deal with them, but in fact, there are far more pornographic novels being spread on the Internet. In real life, it is worrying that the number of cases in which teenagers have taken the road of crime due to this bad influence is increasing. For the future of teenagers and the country, in addition to the relevant departments, the whole society should shoulder a long and arduous task of supervision. Our reporter Jing Li.

Editor: Xun Zhiguo

　　Guan Xiaotong signed autographs for fans. Photo courtesy of the publisher of "I don’t know the taste of sorrow"

　　BEIJING, Beijing, March 18 (Shangguan Yun) On the afternoon of the 18th, actress Guan Xiaotong, known as the "national daughter", appeared in Beijing with her new book "I don’t know the taste of sorrow" and interacted with fans. Guan Xiaotong said that this new book is a collection of essays. "It is far from being of literary value, because I am not a writer either. I just want to share my life and growth stories with you. "

　　So far, Guan Xiaotong has been acting for more than ten years. "I don’t know the taste of sorrow" also reveals her feelings of filming over the years: from a supporting role image, such as the "national girl" in "One Servant and Two Masters", she gradually became the first female in "Good Sir" and "Phoenix Begging for Phoenix".

　　Now, Guan Xiaotong is studying at the Beijing Film Academy, and her status often switches between "actor" and "student". When not filming, she lives the same life as other students; Sometimes when filming, you need to turn around, catch a plane and run publicity … … In this regard, Guan Xiaotong also said that he spent more time than others switching between two different identities, what he can get is secondary, and what is important is to do what he is doing well.

　　The cover of "I don’t know the taste of sorrow". Photo courtesy of the book publisher

　　"This book, not locked me in the room so living. As you know, I have the habit of keeping accounts by hand, and there are several diaries like this. Like during middle school, I will write some experiences every day. " Guan Xiaotong said, what you write down may be some small things, but after a long time, you save a lot.

　　Therefore, Guan Xiaotong said with a smile, "I don’t know the taste of sorrow" is not much literary value, nor is it a good article. I just want to share with you some bits and pieces of my life, which also includes the interaction with fans, because I also have them in my own growth.

　　At the scene, Guan Xiaotong also mentioned his favorite books, "such as Keigo Higashino’s Love Story in a Parallel World". I like reading mystery novels, because I have less time to read books now, and some books may not go on. There are all kinds of clues in mystery novels that can attract me. I may read them quickly, maybe I will finish them in two days. "

　　"In addition, in the mystery story, you can feel a lot of affection, friendship or love, which can make me fill a lot of spiritual things in a limited time." Guan Xiaotong explained. (End)

Original title: Top ten luxury mineral water brands in the world. How much is the most expensive bottle of mineral water?

How much is the most expensive bottle of mineral water?

It may be hard for most people to believe it …

According to the comprehensive ranking, the top ten luxury mineral water brands in the world are: Beverly Hills 90h20, modigliani, Exousia Gold, Kona Nigari, Fillico, Berg Iceberg Glacier Water, Iluliaq Glacier Water, Bling H2O Buling Mineral Water, CHATELDON Chatterdon Mineral Water and AQUADECO Yajia Spring. The details are as follows: The details of the top ten luxury mineral water brands in the world are as follows.

1. Beverly Hills 90h20 mineral water (reference price: 680,000)

This water was selected as the "Best Mineral Water Award in the World" by many high-quality water engineers. It is said that the water source comes from the middle of the Los Angeles Mountains. Its packaging is also very luxurious, and the bottle cap is inlaid with 600 white diamonds and 250 black diamonds.

2. modigliani mineral water (reference price: 420,000)

It is said that the bottle body is made of 24K pure gold, and it is from the artist Fernando. The water comes from Fiji and France, and it contains gold powder.

3. Exousia Gold (reference price: 170,000)

When making water, a special distillation method is used, which is said to have the effect of delaying aging.

4. Kona Nigari (reference price: 2730 yuan)

The water source is selected from the seabed of Hawaii Island. It is said that drinking the water for a long time can help to lose weight and improve the skin condition.

5. Fillico (reference price: 1491 yuan)

The low hardness natural mineral water from Kobe, Japan, has a gorgeous bottle. The bottle cap adopts the shape of a crown, and the bottle body is inlaid with many Swarovski crystals, which are matched with a gold coating. Limited to 500 bottles for sale every month.

6. Berg iceberg brand glacier water (reference price: 900 yuan)

The water source is the ancient glacier in the west of Greenland 15,000 years ago, with soft water quality, slightly sweet taste and low mineral content.

7. Water of Iluliaq Glacier (reference price: 320 yuan)

The water comes from the Selmec Kujalek Glacier in Greenland, and the annual output is very small, and it will only be produced according to the demand. The company will also mark the name of the user who buys glacier water on the bottle, which is the love of celebrities and rich people.

8. Bling H2O Buling mineral water (reference price: 307 yuan)

This kind of water is very popular abroad, and many globes and stars have drunk it. The water source is from Dayun Mountain, Tennessee, USA. The bottle is frosted glass, and the logo is inlaid with 64 Swarovski crystals.

9. CHATELDON Chatterdon mineral water (reference price: 108 yuan)

It is the royal mineral water of King Louis XIV, which is rich in minerals and can usually only be bought in high-end restaurants.

10. AQUADECO Yajia Spring (reference price: 82 yuan)

It is said that the water source comes from an aquifer formed in the ice age tens of thousands of years ago, with a cool entrance, pure water quality and minerals.

Among the top ten most expensive mineral water brands in the world in 2022, besides emphasizing healthy water quality, bottle design and added value occupy the main premium factors.

Editor in charge:

　　CCTV News:The National Stadium Paralympic Ice Hockey Competition entered the final stage of medal competition. Outside the stadium, the most advanced medical care and technology are guarding the dream of every paralympic athlete. Recently, CCTV reporters from the General Station approached the medical team of the National Gymnasium. Let’s follow the reporter’s lens to explore these medical technologies that protect the health of athletes on the field.

　　Before the competition began, the medical staff of the National Gymnasium were conducting a system connectivity test on individual medical equipment. Through this equipment, the real-time high-definition images of medical treatment in the stadium can be transmitted to the medical terminal of Beijing Winter Paralympic Games.

　　Once the emergency button of individual equipment in the venue is triggered, at the medical system terminal of BOCOG, more than 200 experts from more than 20 hospitals will conduct online and offline real-time consultation on emergencies at any time.

　　In the medical control room of the National Gymnasium, the situation of the stadium, clinic and ambulance is displayed on the big screen in real time. During the Games-time, based on 5G high-speed transmission technology, all venues including Beijing, Yanqing and Zhangjiakou, as well as the Medical Center of Beijing Winter Olympics Organizing Committee, have realized real-time sharing of medical resources and first aid information.

　　In addition to the telemedicine system created by the 5G signal, on the ambulances equipped in each venue, the latest medical equipment is also helping medical workers to race against time and grab the prime time for treatment. In the ambulance, the reporter saw that in addition to the negative pressure device to meet the epidemic prevention needs, the car was also equipped with ECG monitoring device, defibrillator and tracheal intubation equipment. Different from the large-scale equipment with the same function in the hospital, the biggest feature of all these equipment is light weight and convenience.