四环素

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(131) / 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(116) / 评论(0) 分类 医务英语

GUY RAZ, HOST: It's the TED Radio Hour from NPR. I'm Guy Raz. And not too long ago, painter and sculptor Titus Kaphar was visiting the Natural History Museum in New York with his kids. TITUS KAPHAR: That's right - two kids, two boys. RAZ: And how old

发表于:2019-01-16 / 阅读(133) / 评论(0) 分类 2017年NPR美国国家公共电台11月

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(137) / 评论(0) 分类 万物简史

Tamar Kaprelian,22岁美国流行创作才女歌手,擅长钢琴和摇滚,1986年出生在美国亚利桑那州,双亲均是亚美尼亚人,2010年发行了首张专辑《Sinner or a Saint》,2012年6月发行了新EP《 California》。

发表于:2019-02-21 / 阅读(76) / 评论(0) 分类 好听的英文歌曲
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