CNN 2009-11-25

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(51) / 评论(0)

cnn2009年(十一)月

60秒科学:Mercury Fillings Seem Safer over Time

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(105) / 评论(0)

60秒科学

Garlic: The Key to a Long Life?

From VOA Learning English, this is the Health Lifestyle report. Garlic is one of the most common cooking ingredients around the world. Many dishes in Europe, Africa, Asia and the Americas use this strong-flavored vegetable. Garlic is similar to other

发表于:2019-01-12 / 阅读(83) / 评论(0)

2016年VOA慢速英语(十二)月

英语听力文摘 English Digest 505、不能不说的秘密

Black Tongues and Stomach Aches Don: Oh, no, Ya?l, I think I'm having a medical emergency. Quick! Call an ambulance. Ya?l: A medical emergency, Don? Are you sure? You look fine to me! D: But I'm not. This morning, I had a terrible stomach ache. And n

发表于:2019-01-26 / 阅读(51) / 评论(0)

英语听力文摘 English Digest

英语听力文摘 English Digest 70、细菌可除臭?

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(47) / 评论(0)

英语听力文摘 English Digest

背单词运用地理学知识强化记忆

Ytterby 瑞典小镇伊特比 yttrium 钇 (1794) erbium 铒 (1842) terbium 铽 (1842) ytterium 镱 (1907) 1794年在瑞典小镇伊特比的黑石中发现了化学元素钇，决定用 Ytterby命名该元素：yttrium。1842 年在该镇的黑石中发

发表于:2019-02-18 / 阅读(38) / 评论(0)

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actual dispense units

auxiliary steam turbine load turnover test

Bacillus diatypticus casei

battles of plassey

Biletan

black rubber fireman's coat