冰晶核

历年考研英语阅读理解mp3(99-4)

[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:03.81]1999 Passage4 [00:07.51]When a Scottish research team startled the world [00:10.54]by revealing 3 months ago [00:12.61]that it had cloned an adult sheep, [00:14.94]President Clinton move

发表于:2018-12-01 / 阅读(286) / 评论(0)

历年考研英语阅读理解

太阳科普第7期

As they grow bigger and bigger, 随着体积越来越大 they start to spin and throw out a disk of debris 它们开始旋转，甩出的碎屑形成盘状 that will coalesce to form a solar system. 在日后融合形成太阳系 This kind of process

发表于:2018-12-07 / 阅读(84) / 评论(0)

太阳科普

Mystery at The Ice Castle Inn: The End

And now the VOA Learning English program, Words and Their Stories. This week we finish the three-part story Mystery at The Ice Castle Inn. You will learn not only the ending of the mystery but also more English expressions that deal with cold. At the

发表于:2018-12-07 / 阅读(41) / 评论(0)

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TED演讲:原子究竟有多小?(3)

OK, one more thing, if I can even get more bizarre. 另外还有一件事是更难以想象的 Since virtually all the mass of an atom is in the nucleus 既然事实是原子的全部质量集中在原子核， now, there is some amount of mass in th

发表于:2018-12-08 / 阅读(50) / 评论(0)

TED演讲教育篇

SSS 2008-08-07

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(73) / 评论(0)

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托福考试：TOEFL模拟试题

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

发表于:2019-02-05 / 阅读(48) / 评论(0)

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