双氮化合物；重氮化合物

VOA慢速英语20061225a

This is the VOA Special English Development Report. Right now, the top story in AIDS research involves newly announced findings about adult male circumcision. Two studies in Africa found that circumci

发表于:2018-11-27 / 阅读(331) / 评论(0)

2006年慢速英语(十二)月

AP 2011-08-27

1. Parts of North Carolina all the way up to Massachusetts have been rattled by an earthquake. The 5.9-magnitude quake was centered in Virginia and has caused minor damage and some injuries. 2. Hundreds of Libyan rebels have stormed one of Muammar Ga

发表于:2018-12-15 / 阅读(100) / 评论(0)

美联社新闻一分钟2011(八月)

SSS 2011-01-27

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Generations of American children have been told, Eat your broccoli! And for decades, researchers have known that broccoli and related vegetables like cauliflower and water

发表于:2018-12-24 / 阅读(61) / 评论(0)

Scientific American(一)月

SSS 2012-01-03

Ever wondered why mosquito eat some people up but leave others relatively unscathed. a new study find this prefential treament due to smells produced by the microscopic critters that cover our bodies. the reaserch is in the journal public library sci

发表于:2018-12-24 / 阅读(101) / 评论(0)

Scientific American(一)月

SSS 2011-03-08

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Wine can help keep conversation flowing at a dinner party. And now it looks like that wine may aid in materials science as well. Japanese researchers dis

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Scientific American(三)月

莎士比亚十四行诗全集:第76篇

Why is my verse so barren of new pride, 为什么我的诗缺乏点晴之笔， So far from variation or quick change? 行文沉闷呆板，千篇一律？ Why with the time do I not glance aside 为什么我的诗不顺应时尚， To new-found meth

发表于:2019-02-24 / 阅读(129) / 评论(0)

莎士比亚十四行诗全集

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学英语单词

amyl triethyl silicane