单词：
单词： 相关文章
Generic Form of Pediatric HIV Drug OKd A new licensing agreement with the pharmaceutical company MERCK allows for the manufacture of a generic version of a pediatric AIDS drug. It may be two years before its readily available in low- and middle-incom
VOA标准英语2015年(二月)
Grammar Girl here. Today's topic is generic personal pronouns. Nolan in Victoria, British Columbia, asked the following question: Just wondering about whether to use she or he in terms of giving examples. Since she was written out of the literature f
英语语法 Grammar Girl
RACHEL MARTIN, HOST: Federal and state investigators say some generic drugmakers have been fixing prices. Nineteen companies have been named so far in a scheme where investigators say consumers were overcharged for a long list of medications. Charles
2018年NPR美国国家公共电台3月
By Noel King Kigali, Rwanda 06 September 2007 An estimated 190,000 people in Rwanda, about three percent of the population, are infected with HIV and AIDS. But there is optimism at the highest levels of government that education can stem the spread o
2007年VOA标准英语（九月）
JINAN, May 14 (Xinhua) -- Chinese scientists said Saturday that they have found a new species of giant theropod dinosaur in the eastern province of Shandong. The new species, described as a close relative of Tyrannosaurus rex (T. rex), has been named
英语新闻
So we went back to molecular biology and started studying different bacteria, 所以我们回到分子生物学的方法，开始研究不同的细菌， and what we've found now is that in fact, bacteria are multilingual. 我们现在已经发现，事
TED演讲教育篇