单词：dipleurula ancestor
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This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? Theres a cool new Web siteand iPhone appthat could come in handy in a wide variety of circumstances. Its called Time Tree. And it tells you how closely related any two org
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第一章：道可道，非常道;名可名，非常名。无名，天地之始;有名，万物之母。故常无欲，以观其妙;常有欲，以观其徼。此两者，同出而异名，同谓之玄。玄之又玄，众妙之门。 The Way that ca
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57 这种动物是人类的祖先吗？ DATE=6-13-01 TITLE=SCIENCE REPORT - Ancestor of Humans BYLINE=Jill Moss (Start at 59
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Broadcast: Jan 17, 2003 By George Grow This is the VOA Special English ENVIRONMENT REPORT. Orangutans are great apes that live in coastal2 jungles on the islands of Borneo and Sumatra. A team of inter
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