单词：tetragonous
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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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August the 9th is International Day of the World's Indigenous People. It is a time for the world to understand the problems of indigenous peoples around the world. The day was created by the United Nations General Assembly in 1994. It wanted to stren
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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 Doug Levine Washington 15 July 2006 Every now and then a young guitar player comes along with the promise of being the next Eric Clapton or Jimi Hendrix. The arrival of Native American guitarist Mato Nanji may mean the wait for a new rock superst
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Bangladesh's government says all mutinous border guards have ended their rebellion. That word came after army tanks took positions outside the Dhaka headquarters of the border force. Some officials put the death toll from the two-day uprising at mor
VOA标准英语2009年(二月)
By Naomi Schwarz Dogon Country 04 January 2007 In this arid area near the eastern edge of Mali near the Burkina Faso border, the indigenous Dogon people struggle to maintain their culture and traditional ways of life since the end of the colonial er
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By Cathy Majtenyi Nairobi 11 December 2006 A senior U.N. official concerned with the plight of indigenous communities around the world is in Kenya to assess the situation of pastoralist, hunter-gatherer, and other indigenous communities in the East
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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
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