工业苯

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

Bad loans at Chinese commercial banks fall in 2010

BEIJING, Jan. 26 (Xinhua) -- China's banking watchdog said Wednesday Chinese domestic commercial banks' balance of non-performing loans (NPL) decreased（减少） 14 percent through 2010 to stand at 429.3 billion yuan (65.17 billion U.S. dollars) at

发表于:2019-02-06 / 阅读(60) / 评论(0)

英语新闻

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)

阅读空间

Commercial Insurance for Taxies Needed

In the event of an accident, taxi drivers face possible bankruptcy since many are not protected by commercial insurance, and would be required to pay not only compensation to the accident victim, but also a penalty from the traffic administration. [P

发表于:2019-02-14 / 阅读(166) / 评论(0)

世界各地新闻集锦

US Space Program Goes Commercial

This Friday, the U.S. space shuttle Endeavor is scheduled to lift off on its last voyage（航行） to the orbiting International Space Station. And on June 28, barring any last minute complications, Alantis will become the last space shuttle ever t

发表于:2019-02-18 / 阅读(52) / 评论(0)

英语新闻

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(48) / 评论(0)

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