[医]生物选择（性）层析

ABC潘玮柏教学地道日常口语 Unit15

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发表于:2018-11-27 / 阅读(356) / 评论(0)

ABC潘玮柏教学地道日常口语

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科技之光

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By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode

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发表于:2019-01-17 / 阅读(178) / 评论(0)

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AGRICULTURE REPORT - Biocontrols, Part 2

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发表于:2019-02-02 / 阅读(211) / 评论(0)

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College tuitions are becoming prohibitively expensive for many people, with Harvard University now costing almost $61,000 a year for tuition, room, board and fees. Given the high price tag, is it worth it to graduate from a highly selective school ve

发表于:2019-02-05 / 阅读(198) / 评论(0)

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俄科学家研制出"不老药"

俄罗斯莫斯科的一位生物能量学教授近日宣布，他已研制出一种能够有效延缓衰老的不老药，并有望于几年内上架销售。这位科学家用40年的时间研制出一种抗氧化剂，能够有效抑制氧分子对人

发表于:2019-02-06 / 阅读(255) / 评论(0)

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发表于:2019-02-17 / 阅读(176) / 评论(0)

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One of the most common questions cancer patients ask their doctors is: has the disease been contained or will it spread. A recent study by U.S. and Chinese researchers may help provide clues. The scientists examined genetic（遗传的,基因的） m

发表于:2019-02-18 / 阅读(172) / 评论(0)

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