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VOA慢速英语20060627b

SCIENCE IN THE NEWS - Protections Increased for Sea Life in Northwestern HawaiiBy Nancy Steinbach, Erin Schiavone and Jerilyn Watson Broadcast: Mon, 26 Jun 2006 16:00:00 UTC (MUSIC) VOICE ONE: This is

发表于:2019-01-02 / 阅读(78) / 评论(0)

2006年慢速英语（六）月

SSS 2011-08-12

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(69) / 评论(0)

Scientific American(八)月

VOA标准英语2010年-Website of the Week – Physics Intera

Time again for our Website of the Week, when we showcase interesting and innovative online destinations. This time it's an educational site where principles of physics are illustrated with interactive animated experiments that you can perform on your

发表于:2019-01-25 / 阅读(52) / 评论(0)

VOA标准英语2010年(二月)

净化室内空气选这些植物就对了！

Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康

发表于:2019-02-07 / 阅读(66) / 评论(0)

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夏说英语新闻晨读第499期:兔子与绿萝杂交

本期内容： A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou

发表于:2019-02-20 / 阅读(50) / 评论(0)

夏说英语新闻晨读

TED演讲:科技为人道主义带来的变化(2)

Never having been confronted with this type of situation before, 我们从未遇到过此类情况， we wanted to try and understand how we could tap into this incredible resource, 我们想努力了解如何利用这些令人难以置信的信息资源

发表于:2019-03-04 / 阅读(89) / 评论(0)

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3-buten-2-one

accessory olfactory bulb

apportionment of revenues