苯甲醇

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(107) / 评论(0)

Scientific American(八)月

NPR边听边练17:请给电池多点能量！

【NPR边听边练】致力于提供新鲜有趣、饶有意味的时讯资料，致力于通过精听的方式促进听力提高，致力于不断开阔眼界和深入了解美国观点。精听建议：先完整地把一条新闻听一到三遍，争

发表于:2019-01-22 / 阅读(65) / 评论(0)

NPR边听边练

宿醉如何解酒专家说起床再喝一杯

For as long as people have been drinking too much, they have been searching for a cure for that dreaded morning after hangover. 只要一个人有过酩酊大醉的时候，他们就一定曾寻找过解决宿醉之后可怕的第二天清晨。 Raw

发表于:2019-02-05 / 阅读(58) / 评论(0)

阅读空间

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(120) / 评论(0)

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VOA标准英语2009-Tainted Liquor Kills More Than 20 People in

At least 23 people have died on the Indonesian resort islands of Bali and Lombok after consuming locally produced palm wine made with methanol, a fuel used for lanterns. The first victims began arriving at Sanglah General Hospital in the Balinese ci

发表于:2019-02-12 / 阅读(56) / 评论(0)

VOA标准英语2009年(六月)

NW China Road accident death toll rises to 36

YAN'AN, Shaanxi, Aug. 26 (Xinhua) -- The death toll from an expressway collision between a bus and a tanker in northwest China has risen to 36, local police said Sunday. The accident happened at around 2 a.m. in Yan'an, Shaanxi Province, when a doubl

发表于:2019-02-18 / 阅读(98) / 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(88) / 评论(0)

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