苄川三氯

VOA标准英语2014--敖德萨活动人士或许死于氯仿中毒

Chloroform Poisoning Might Have Killed Odessa Activists 敖德萨活动人士或许死于氯仿中毒 ODESSA, UKRAINE Ukraine's government says 32 pro-Russian activists who died during a fire in a building they had taken over early this month in Odes

发表于:2018-12-16 / 阅读(133) / 评论(0)

VOA标准英语2014年(五月)

万物简史第478期:生命在前进(20)

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(180) / 评论(0)

万物简史

SSS 2011-03-29

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(158) / 评论(0)

Scientific American(三)月

英文书摘精选有趣的事实,短嘴鳄可以再长牙齿

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(139) / 评论(0)

初学者听力文摘精选

英语听力文摘 English Digest 600、科学家如何预测火山喷发？

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(128) / 评论(0)

英语听力文摘 English Digest

SSS 2008-04-17

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(175) / 评论(0)

Scientific American(四)月

SSS 2009-11-13

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(190) / 评论(0)

Scientific American(十一)月

Researchers make sperm from stem cell in dish

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(315) / 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(159) / 评论(0)

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学英语单词

absorption spectra

Agamor

agricultural occupational dermatitis

aishanna

all-pass

alternate-index record

aniler

arsensulvanite (arsenosulvanite)

asa thread symbol

astern torque

batch restore