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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(137) / 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

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60秒科学

吸收金属原料的植物有助于抗癌药品的研制

99 吸收金属原料的植物有助于抗癌药品的研制 AGRICULTURE REPORT September 25, 2001: Plants that Absorb MetalsBy George Grow （Start at 1'00

发表于:2019-01-02 / 阅读(140) / 评论(0)

科技之光

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(197) / 评论(0)

2016年VOA慢速英语(十二)月

VOA标准英语2011-Study Shows Vitamin E Increases Prostate

Study Shows Vitamin E Increases Prostate Cancer Risk A number of medical studies over the years suggested that vitamin E, taken as a dietary supplement, might help prevent prostate cancer. But new research finds not only that the earlier studies were

发表于:2019-01-14 / 阅读(136) / 评论(0)

VOA标准英语2011年(十月)

VOA标准英语2013--Scientists Suggest Adding Selenium to Diets in Malawi

Scientists Suggest Adding Selenium to Diets in Malawi The study, which was published in the journal Scientific Reports, found that most Malawi soils do not have an adequate amount of selenium required for human nutrition. In the report, researchers a

发表于:2019-01-14 / 阅读(143) / 评论(0)

VOA标准英语2013年(三月)

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(125) / 评论(0)

英语听力文摘 English Digest

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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(138) / 评论(0)

英语听力文摘 English Digest

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abbondio

accessory vasomotar center

antarctic intermediate water (aaiw)