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We all have Escherichia coli bacteria in our intestines. These are the good strains of the bacteria. They help us digest our food. There are billions of these bacteria in our intestines and in our feces. Of the hundreds of strains of good E. coli, th

发表于:2018-12-31 / 阅读(53) / 评论(0)

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万花筒 2011-11-12&11-14 流感知多少？

After getting your flu shot, did you know it takes about two weeks to develop an immunity? Its true. You can test your knowledge on more flu facts by taking this quiz. Here it goes. True or false: The flu isnt serious. Thats false. You can have compl

发表于:2019-01-07 / 阅读(35) / 评论(0)

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VOA标准英语2011--Study: Vitamin D is Powerful Weapon Agai

Study: Vitamin D is Powerful Weapon Against TB Vitamin D plays a critical role in fighting infection and now scientists say that it may be a powerful weapon against tuberculosis. In a study reported in the journal Science Translational Medicine, rese

发表于:2019-01-14 / 阅读(33) / 评论(0)

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PBS高端访谈:为什么寨卡病毒传播速度如此之快?

JUDY WOODRUFF: Just weeks ago, hardly anyone in the U.S. knew what the Zika virus was, much less worried about it. But the World Health Organization's warning today put the Americas, including the U.S., on new notice. And, suddenly, a mosquito-borne

发表于:2019-01-27 / 阅读(37) / 评论(0)

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走进牛津大学第26期:牛津大学最大的学部

The Medical Sciences Division is the largest academic division in the University of Oxford, and also an internationally renowned centre for biomedical and clinical teaching and research. 医学部是牛津大学最大的学部，也是一个国际知名

发表于:2019-01-29 / 阅读(54) / 评论(0)

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夏说英语新闻晨读第186期:阿兹海默症药物试制失败

本期内容： Eli Lilly said that a clinical trial for a new drug to slow the onset of Alzheimers had failed. The drug, solanezumab, was tested on patients with mild cases of Alzheimers, who showed only a slight improvement after 18 months of treat

发表于:2019-02-20 / 阅读(37) / 评论(0)

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