un. 水银稳定器

2005年NPR美国国家公共电台三月-Studies Find High Mercury Levels in the W

Studies that will be released today show that fish, birds and mammals in New England have significant amounts of mercury in their bodies. The studies find the toxic metal in some unexpected habitats and they suggest that power plants in the Midwest a

发表于:2018-12-17 / 阅读(133) / 评论(0)

2009年NPR美国国家公共电台7月

彭蒙惠英语：The Mercury Mess

The Mercury Mess By Samantha Levine / 2004, as first appeared in U.S. News nbsp; What are the dangers of mercury in fish? Can the mercury mess be cleaned up? 1 Are these fish safe to eat?” It’s a

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彭蒙惠英语

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发表于:2019-01-28 / 阅读(75) / 评论(0)

Let's chant Let's sing

牛津少儿英语 let's chant 52 - Big Box, Little Box (group) - 25 s.

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发表于:2019-01-28 / 阅读(81) / 评论(0)

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SCIENCE IN THE NEWS - Mercury in Fish / Life on Land / The G

SCIENCE IN THE NEWS - Mercury in Fish / Life on Land / The Goldman Environmental Prize By Broadcast: Tuesday, May 11, 2004 (THEME) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm B

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科技之光

VOA常速英语2008年-Mercury Seen in New Light

By Paul Sisco Washington, DC 15 February 2008 Scientists have started analyzing data and images acquired when the Messenger space probe passed within 200 kilometers of the planet Mercury last month. It was the first flyby of the solar system's inner-

发表于:2019-02-06 / 阅读(78) / 评论(0)

VOA常速英语2008年（二月）

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Actinocarya tibetica

alopecia leprotica

amount of existing fixed assets which are to be scrapped

arms sales

artificial frozen soil

be stigmatized

bestloved

Bhongaon

biochemistry of endoparasites

bisporus

Boyagyi