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WHO: Balanced Approach for New Bird Flu Virus Strain In 2011, scientists discovered they had created a highly contagious and deadly form of H5N1 commonly called avian or bird flu. When the discovery was announced, debate erupted over whether the rese
VOA标准英语2011年(十二月)
The flu epidemic intensified a few week ago, but it continued to worsen with widespread outbreaks being reported in every state except Florida. NBC's Robert Bazell reports. And there's new information tonight about this year's flu epidemic and why i
万花筒2008年
DAVID GREENE, HOST: And we're going to spend some time now in China's far northwestern region, Xinjiang, which is four times the size of California. It's home to a Muslim minority group called the Uighurs. They have had this tense relationship with C
2017年NPR美国国家公共电台9月
Chapter 35 My new holliday plan第35章假期新计划David: Where are you planning to go for your next holliday? 你下个假期打算去那儿？ You: Huangshan in Anhui province. 打算去黄山，安徽省内。 David: Have you ever been there? 你
留学生在中国
今天我们要学的词是 strain. strain 的意思是压力，费力，使足力气。 In China, female pilots strain to hold up half the sky although they account for only 1.3 percent of all the pilot, one of the lowest proportion in the world. 在中
英语单词荟萃
The Rain's Maintained Speed Strain Is Now Explained A study in the journal Geophysical Research Letters finds that some raindrops are falling faster than they should be, which means meteorologists may be overestimating the total amount of rainfall.
60秒科学