2-丙烯氧苯；烯丙氧苯；烯丙基苯基醚

OxyContin Warning

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson （Start at 1'02

发表于:2019-01-02 / 阅读(74) / 评论(0)

科技之光

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

美国国家公共电台 NPR Le Pen Finds Support In Pro-Europe French City

LOURDES GARCIA-NAVARRO, HOST: And now to France, where the polls show a tight race in the upcoming presidential election. Among the subjects dividing the population is membership in the European Union. The EU is still very popular in France, but righ

发表于:2019-01-17 / 阅读(39) / 评论(0)

2017年NPR美国国家公共电台4月

英语博客(A cup of English):Vaccines for Foxy.

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(68) / 评论(0)

英语博客 A cup of English

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

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)

夏说英语新闻晨读

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学英语单词

'is

A bow long bent at last waxes A bow long bent grows weak.