[化] 接四嗪; 1,2,3,4-连四嗪

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(71) / 评论(0) 分类 Scientific American(一)月

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(59) / 评论(0) 分类 医务英语

By Sabina Castelfranco Incoming European Commission President Jose Manuel Barroso has begun consultations with the European Union (EU) governments in an effort to resolve the crisis over his proposed

发表于:2019-01-11 / 阅读(61) / 评论(0) 分类 VOA2004(下)--新闻盘点

By Lisa Bryant Paris 16 September 2009 Jose Manuel Barroso The European Parliament has endorsed European Commission President Jose Manuel Barroso, for a second term in office. Barroso has pledged a stronger and more fiscally responsible Europe durin

发表于:2019-02-07 / 阅读(43) / 评论(0) 分类 VOA标准英语2009年(九月)

MILAN, Italy, Jan. 22 (Xinhua) -- European Commission(委员会) President Jose Manuel Barroso said Saturday Europe could no longer postpone fiscal consolidation and structural reforms in order to return to growth after the economic crisis. In a

发表于:2019-02-08 / 阅读(87) / 评论(0) 分类 英语新闻

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(69) / 评论(0) 分类 万物简史
学英语单词
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