苯琥胺

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发表于:2018-12-04 / 阅读(136) / 评论(0) 分类 冀教版高中英语必修五

AS IT IS 2016-10-01 Report: Smoking May Permanently Damage Genetic Material 报告称吸烟或永久性损伤你的遗传物质 Here is another reason to not light up a cigarette. Smoking can permanently damage your genetic material, according to a n

发表于:2018-12-16 / 阅读(71) / 评论(0) 分类 2016年VOA慢速英语(十)月

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(128) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

发表于:2018-12-24 / 阅读(118) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(103) / 评论(0) 分类 Scientific American(三)月

Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting

发表于:2018-12-24 / 阅读(119) / 评论(0) 分类 Scientific American(三)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(77) / 评论(0) 分类 初学者听力文摘精选

8Now the Ephraimites asked Gideon, Why have you treated us like this? Why didn't you call us when you went to fight Midian? And they criticized him sharply. 2But he answered them, What have I accomplished compared to you? Aren't the gleanings of Ephr

发表于:2018-12-31 / 阅读(130) / 评论(0) 分类 士师记

Don't worry about that mistake. It's water under the bridge. 别担心那个错误,这是无法改变的事。 Don't worry about that mistake. Its water under the bndgc. 别担心那个错误,这是无法改变的事。 Are you sure? 你确定吗?

发表于:2018-12-31 / 阅读(104) / 评论(0) 分类 玩转商务英语900句

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物(舞茸提取物) Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(117) / 评论(0) 分类 医务英语

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(151) / 评论(0) 分类 农业与发展

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(115) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(117) / 评论(0) 分类 Scientific American(十一)月

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(122) / 评论(0) 分类 VOA2003(下)-环境与健康

Doing the right thing can help individuals and institutions succeed. But knowing what that right thing is, is not easy. In Practical Wisdom: The Right Way to Do the Right Thing, authors Barry Schwartz and Kenneth Sharp explain that it's possible to d

发表于:2019-01-14 / 阅读(152) / 评论(0) 分类 VOA标准英语2011年(一月)

Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长

发表于:2019-01-26 / 阅读(143) / 评论(0) 分类 经济学人科技系列

Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod

发表于:2019-01-31 / 阅读(106) / 评论(0) 分类 VOA常速英语2013年(十月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(242) / 评论(0) 分类 英语新闻

By Scott Bobb Johannesburg 10 March 2008 Economic sanctions are imposed primarily as a non-violent way to press a specific government to change. But sanctions are often controversial and their effectiveness is not assured. VOA's Scott Bobb in Johanne

发表于:2019-02-05 / 阅读(71) / 评论(0) 分类 VOA标准英语2008年(三月)

By Jim Randle Baghdad 15 January 2007 The outgoing commander of U.S. forces in Iraq says it will probably take months to see results from a new security plan for Iraq. And, as VOA's Jim Randle reports from Baghdad, the general says there are no guar

发表于:2019-02-06 / 阅读(133) / 评论(0) 分类 2007年VOA标准英语(一月)
学英语单词
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acrosyringeal epidermolytic papulosis neviformis
air base area
Air Service Agreements
anion treatment
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bargains on
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borj rahal
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Cleethorpes
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differential permittivity
dihydrodoisynolic acid
disabled children
disk read/write head
dynamic variability
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initally
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Isora
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T-T
television cartridge
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trial and error theory
urobilinogen
verticillate
well-tongued
wetumpka
Windows Sound System
Xenungulata