绿色工程{永续工程}

纯正英语一分钟-genetic engineering

I think the idea of genetic engineering is fascinating. Its also quite dangerous. Fiddling around with what makes us human might make us less human. We could end up creating a Frankensteins monster. The idea of genetic engineering has been around for

发表于:2018-12-26 / 阅读(61) / 评论(0)

纯正英语一分钟

听一分钟英文：Genetic Engineering-基因工程

发表于:2018-12-28 / 阅读(70) / 评论(0)

听一分钟英文-G

VOA标准英语2013--Green Card Lottery Faces Elimination Under US Immigration Reform

Green Card Lottery Faces Elimination Under US Immigration Reform Two years ago Rafiq-ul-Islam won a U.S. permanent resident visa through the Green Card Lottery and came to the United States from Bangladesh -- with little more than the clothing he own

发表于:2019-01-14 / 阅读(42) / 评论(0)

VOA标准英语2013年(五月)

VOA标准英语2013--US Green Card Lottery Under Threat

US Green Card Lottery Under Threat Two years ago Rafiq-ul-Islam won a U.S. permanent resident visa through the Green Card Lottery and came to the United States from Bangladesh -- with little more than the clothing he owned and a dream of a better lif

发表于:2019-01-14 / 阅读(79) / 评论(0)

VOA标准英语2013年(五月)

美国国家公共电台 NPR Childhood Playmates Reconnect, Rekindle Friendship That Transcends Race and Distance

LULU GARCIA-NAVARRO, HOST: There are times when we can connect with someone and then never see them again - a missed connection. We've been trying to help some of you connect with people you've been trying to find. In the 1970s, two little girls met

发表于:2019-01-16 / 阅读(38) / 评论(0)

2018年NPR美国国家公共电台3月

Genetic Engineering Crop Debate

84 利用基因技术提高粮食产量 DATE=8-14-01 TITLE=AGRICULTURE REPORT - Genetic Engineering Crop Debate BYLINE=George Grow （Start at 59

发表于:2019-01-30 / 阅读(68) / 评论(0)

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associative syntactic calculus

augite

belt edge sander

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Beyer's speed change device

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