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There are still many problems of environmental protection in recent years. One of the most serious problems is the serious pollution of air, water and soil. the polluted air does great harm to people’s health. The polluted water causes diseases and death. What is more, vegetation had been ...
More than that, what is the most important is that it makes the public aware of environmental issues and arouses their sense of responsibility. It is strongly suggested that everyone in the community should take an active part in the activ...
This particular outbreak is caused by the H5N1 bird flu virus, which was first discovered in China in 1996. In 2021, a new variant of that virus emerged and started spreading around the world. The virus started infecting chickens on poultry farms in the United States in February 2022. What...
" It seems like "at least fifty percent of the people that you know have this hacking cough that has been going on for weeks," saidTikTokerBethany Veach in one viralvideo. While your cough amid this potent cold,COVID, and flu season might be nothing to worry about, a lingering cough ...
The 1918 Spanish flu was easily the deadliest flu pandemic of the 20th century, killing tens of millions of people. 1918年的西班牙流感无疑是20世纪最致命的流感大流行，导致数千万人死亡。The Asian flu outbreak followed in 1957, killing roughly 1.1 million people around the world. Thankfully, ...
The First World War was among the deadliest conflicts in history and killed more than 20 million people. But an outbreak of flu that began as the war ended turned out to be far more destructive. It was known as the Spanish Influenza, and infected one in three humans on Earth. It was ...
() In this information age when new things spring up virtually every moment, it is necessary for you to keep of the latest information via different means. A. along B. abreast C. ahead D. ahold 查看完整题目与答案 () The severe situation nationwide forced me to dismiss the idea ...
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COVID-19 may be a rare incidence,but influenza and avian flu,which can also cause severe illness to fatality,happen almost every year in different parts of the world. At least 10000 people died from influenza since second half in the US in 2019 while 19 million people were infected,accordin...