[化] 长丝旦数; 单丝旦数

Obama hurt in basketball game

WASHINGTON, Nov. 26 (Xinhua) -- U.S. President Barack Obama was hurt in a basketball game Friday morning, and got 12 stitches in his lip, the White House said. Obama got the stitches after his basketball game in the morning with personal aide Reggie

发表于:2019-01-07 / 阅读(102) / 评论(0)

英语新闻

VOA慢速英语 2007 0318

ANNOUNCER: Welcome to the VOA Special English program, People in America. Today, Sarah Long and Bob Doughty tell about the inventor Thomas Alva Edison. He had a major effect on the lives of people around the world. Thomas Edison is remembered most f

发表于:2019-01-11 / 阅读(51) / 评论(0)

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美国国家公共电台 NPR Deborah Lipstadt: How Do You Stand Up To A Holocaust Denier?

GUY RAZ, HOST: It's the TED Radio Hour from NPR. I'm Guy Raz. And on the show today, Truth and Lies - ideas about navigating a world where facts seem to be up for debate, whether it's science or history or even a presidential election and why some pe

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TED演讲:昔日纽约(2)

Is it simply the byproduct of a crude mechanical action? 它仅仅是一个粗糙机械制作的副产品？ Or is it an imitation of one half the set of sounds we make to express disappointment? 或者对我们抒发不满的一种声音的一半所进

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TED演讲商业篇

科学家设计公式助你选紧身袜厚度

If you thought wearing a pair of tights is a simple matter, you'd be wrong. A male scientist has devised a mathematical formula to help women choose the perfect pair of tights to keep their legs warm this winter. 如果你以为穿一件紧身袜是件

发表于:2019-02-01 / 阅读(20) / 评论(0)

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经济学人314:三维压制第三世界的发展空间

Science and technology 科学技术 3D printing 三维压制 A third-world dimension 第三世界的发展空间 A new manufacturing technique could help poor countries as well as rich ones 一项新的制造技术能够对贫困国家有所帮助，就

发表于:2019-02-24 / 阅读(83) / 评论(0)

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学英语单词

'round robin' design

acclaimeth

alkyl magnesium halide

analysis machine

aptina

Arrhenius activation energy

Asasantin

asymmetrical terminal voltage

barbamil

barbarian

boundary value condition