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Lesson 53 Television Day: Penicillin TV Commentary: If you leave a piece of bread in a warm damp place, mould will soon grow in it. When this happens, we say that bread has gone mouldy. Mould can grow on all kinds of things besides food-on leather, c

发表于:2018-12-20 / 阅读(166) / 评论(0)

朗文3L看听学英语第四册

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This is Scientific American -60 seconds science. Im Cynthia Graber. This will just take a minute. A coal mine can degrade its local environment. But fungus may inadvertently help clean up the mine with its own waste products. Researchers worked with

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SCIENCE IN THE NEWS - Anthrax Has Been Widely Feared Since the 2001 Anthrax Attacks in the United BARBARA KLEIN: This is SCIENCE IN THE NEWS, in VOA Special English. Im Barbara Klein. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today we tell about

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1.The FBI has released documents saying Army scientist Bruce Ivins had custody of anthrax spores identical to those that killed five and sickened at least 17 others in 2001.The FBI also says Ivins worked unusually late lab work hours around the time

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Whats the Next Big Thing? 09年哪个游戏会大红大紫？ 2008 was a bumper year for videogame sales in the UK, with British consumers forking out more than ￡4bn (40bn yuan) on games and consoles. Nintendo dominated the UK market, outstripping

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英语听力精选进阶版

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3-hydroxypropyl acrylate

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