标签：liquid 相关文章

英语听力文摘 English Digest 617、人体如何造血？

If blood didnt circulate through our bodies, carrying oxygen and nutrients, we wouldnt be able to live. Blood is so important to life that the body constantly makes new blood. To do this, the body must produce the liquid part of blood, called plasma,

发表于:2018-12-31 / 阅读(55) / 评论(0) 分类 英语听力文摘 English Digest

英语听力文摘 English Digest 613、酸奶中的神秘液体

The Mysterious Liquid In Yogurt When you open a container of yogurt, youll often see liquid collected on top. Some people mix it back into the yogurt, and others drain it off. What is it, and where does it come from? To solve the mystery of the liqui

发表于:2018-12-31 / 阅读(50) / 评论(0) 分类 英语听力文摘 English Digest

英语听力文摘 English Digest 598、宇航员如何在太空中上厕所？

It may sound silly, but its really a good question, because weightlessness does make a visit to the latrine a tricky proposition. Weightlessness poses two main problems in the bathroom. The first is that an astronaut could drift away from the bowl at

发表于:2018-12-31 / 阅读(56) / 评论(0) 分类 英语听力文摘 English Digest

英语听力文摘 English Digest 532、有一种沸腾能冷却你的食物！

The Rolling Boil That Cools Your Food When you think of something boiling, you probably picture a pot on the stove, but theres another kitchen appliance that brings liquid to a boil, not to heat food, but cool it. It sounds crazy, but household refri

发表于:2018-12-31 / 阅读(78) / 评论(0) 分类 英语听力文摘 English Digest

美国国家公共电台 NPR Names Written In Blood And Rust: Documenting Syria's Disappeared

RACHEL MARTIN, HOST: By many measures, Mansour Omari should not be a free man. The Syrian human rights activist spent years documenting the many abuses of the Syrian government, keeping track of the tens of thousands of Syrians who have disappeared i

发表于:2019-01-16 / 阅读(42) / 评论(0) 分类 2017年NPR美国国家公共电台12月

英语听力：自然百科 穿越银河系的旅行 Through Milky Way—34

One type of giant planet orbits very close to its star, we call them hot Jupiters because these Jupiter-like planets are so close that they are blowtorched by the intense heat from the star. The other sort of planet we have found is also bizarre. Wev

发表于:2019-01-22 / 阅读(40) / 评论(0) 分类 自然百科2011年

英语听力：自然百科 已知的宇宙：外星生命 Alien_Contact-3

Those planets are all going to be so hot, and you cant develop something as complex as life. Scientists have gone back to the drawing board, looking to find worlds capable of supporting life, small rocky planets like earth. We dont know that life has

发表于:2019-01-22 / 阅读(56) / 评论(0) 分类 自然百科2010年

英语听力文摘 English Digest 462、食盐大战冰块

Salt vs. Ice 食盐大战冰块 Y: Why does salt melt ice? D: It lowers the melting and freezing point of water. Y: Oh,OK.Wait,I don't get it. Doesn't that mean the salt make ice colder? D: Let me explain.Pure water freezes at thirty-two degrees Fahr

发表于:2019-01-26 / 阅读(64) / 评论(0) 分类 英语听力文摘 English Digest

2007年VOA标准英语-US Spacecraft Finds Signs of Seas on Saturn's B

By David McAlary Washington 14 March 2007 A U.S. spacecraft studying Saturn has found evidence of large seas on its biggest moon, Titan. But if they are seas, they would not be filled with water. Instead, as VOA's David McAlary reports, they would be

发表于:2019-01-30 / 阅读(84) / 评论(0) 分类 2007年VOA标准英语（三月）
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