单词：Linociera hainanensis
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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
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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
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By Cathy Majtenyi Nairobi 04 December 2006 watch Somali Refugees in Kenya Dadaab Somali refugees In Somalia, tensions between the rapidly-expanding Islamic Courts Union and the fledgling transitional government are escalating, prompting fears of an
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Jeng: What did you do this summer? Cynthia: I worked at a summer camp as a nurses aide. I thought we would be giving simple first aid, but you wouldnt believe the kinds of injuries the kids came in with. Jeng: You mean like poison ivy, bee stings, bu
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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
万物简史
今天我们要学的词是summer camp。 Summer camp, 夏令营。Going to summer camp is a long tradition in the U.S. 送孩子去夏令营是美国一个历史悠久的传统。Some 8 million children attend summer camps each year, 每年有大约八
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