美国有线新闻 CNN 2014-03-24

The search for 370 narrows and the picture of the path seems to get sharper, let us get start, each one take a moment tonight get everyone back on the same page, the world we know so far, let us begins at 12:41 at local time in the morning of the 8th

高中英语人教版必修3 09

[00:03.68]astronomy astronomer biochemistry geophysics [00:11.40]天文学 天文学家 生物化学 地球物理学 [00:19.12]atmosphere solar system solar system [00:26.64]大气层 太阳的 系统 太阳系 [00:34.17]Big Bang violent solid explod

New Attraction in China Simulates Death, Rebirth

New Attraction in China Simulates Death, Rebirth People who wonder how it feels to die will be able to get a sense of it in China's new attraction - a death simulator called Xinglai. The attraction offers a 2-hour session in which participants are gi

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Frogs Were Used In Pregnancy Tests Between 1930-1950, African clawed frogs were in great demand. These frogs were imported all over the world and used in labs for pregnancy tests. Technicians injected a sample of a womans urine into a female frogs hi

CNN 2012-03-18

Friends and neighbors of army staff sergeant Robert Bales in Tacoma Washington say they are shocked by the accusation that he murdered 16 Afghan villagers last weekend in a sudden shooting spree.Cathy Holland lives near Bales',his wife and two childr

SSS 2012-01-13

This is Scientific America's 60 second science, I'm Sentay Graber, this will just take a minute. Magnifying glass, telescope, tiny tiny tape measure, these are the weapons with which researchers are fading it out to find the world's smallest frog.One

SSS 2012-01-16

Magnifying glass, calipers, teeny tiny tape measure, these are the weapons with which researchers are fighting it out to find the world's smallest frog. One team just announced the discovery of the unaverage 7.7 millimeter p* which can sit comfortabl

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Y: Hey, Don, did you ever wanna be a doctor when you were a kid? D: Yeah, I always wanted to be a surgeon. Y: So, what happened? D: Im afraid of blood. Plus, its a lot of pressure. Having someones life in your hands, I mean, one mistake, and you can

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Sidney was a 14-year-old boy with an interest in the sciences. One summer day he started his own investigations. With his 12-year-old sister Sophie in tow, he caught a large bull frog in a local pond. Sidney started his experiment with the amphibian,

TED演讲:论生物多样性(2)

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airliner 班机 monoplane 单翼飞机 glider 滑翔机 trainer aircraft 教练机 passenger plane 客机 propeller-driven aircraft 螺旋桨飞机 jet(aircraft) 喷射飞机 amphibian 水陆两用飞机

SSS 2010-08-05

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute Declining frog populations are considered an indicator of environmental damage. But new research finds that frogs might be doing even worse than we thou

NPR 2011-03-03

From NPR News in Washington, I'm Lakshmi Singh. Terrorism is not being rolled out in today's shooting attack in Frankfurt, Germany that left two US airmen dead and two others wounded. President Obama says he is saddened and outraged. I want everybody

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英语听力：Wild China 美丽中国 -10

Winding between Zhangjiajie's peaks, crystal clear mountain streams are home to what is perhaps China's strangest creature. This bizarre animal is a type of newt, the Chinese giant salamander. In China, it is known as the baby fish because when distr

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