This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. In 2005 two scientists won a Nobel Prize for discovering that a bacterium called Helicobacter pylori causes most stomach ulcers. One of them even chugged a

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Scientific American(七)月

个性品德Personality and Character篇

Personality and Character I: What kind of personality do you think you have? C: I'm easy to approach and friendly to everyone. / I'm inclined to think independently. / Frankly, I have a inquiring mind. / I think I'm a cooperative worker. / Well, I ap

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面试英语

2006年VOA标准英语-Experts Discuss Impact of Climate Change on Wat

By Efam Dovi Accra 24 September 2006 Climate experts from across Africa, meeting in Ghana, say climate change would have a severe impact on Africa's water resources, energy, agriculture and eventually food security. The experts were assessing where

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2006年VOA标准英语（九月）

美国习惯用语:293 class act; hard act to follow;

今天要讲的惯用语里有个共同的词act。这真是个多义词，但是我们的时间有限说不了那么多，所以今天要说到的act都有表演的意思。比方说，我们要学的第一个习惯用语是：class act。 Class这里

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美国习惯用语

2007年VOA标准英语-UN Chief Says International Community Must Act

By Margaret Besheer United Nations 25 September 2007 An unprecedented summit on climate change has ended at the United Nations. Secretary-General Ban Ki-moon says the event has sent a powerful political signal to the world that there is the will and

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2007年VOA标准英语（九月）

VOA慢速英语2009-Development Report - From Depths of a Librar

This is the VOA Special English Development Report. Jeffrey Schwarz coordinates the water filter project for North America from the Carnegie Library Pot Shop, adapting technology developed in Central America during Hurricane Mitch in 1998 The Braddo

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VOA慢速英语2009年（六）月

VOA标准英语2011--Legacy of Suspicion, Betrayal Haunts Lib

Legacy of Suspicion, Betrayal Haunts Libya One of the defining characteristics of Libyan leader Moammar Gadhafi's era has been the crafty network of secret police and government informers. Decades of living with the fear of betrayal have taken their

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VOA标准英语2011年(四月)

VOA标准英语2011--Exhibit Salutes Children's Author Who Introduced Minority Characters

Exhibit Salutes Children's Author Who Introduced Minority Characters Shakespeare asked, What's in a Name? A lot, it turns out. Take Ezra Jack Keats, the famous childrens book author and illustrator, who died in 1983. Keats wrote and illustrated more

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VOA标准英语2011年(十一月)

音乐咖啡厅:Libera - You were there

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音乐咖啡厅

Actos prevents diabetes in high-risk people

BEIJING, March 24 (Xinhuanet) -- A new study has found that Actos, a medicine treats onset diabetes, could also reduce the diabetes(糖尿病) risk in people with prediabetes. The study, which was published Wednesday in New England Journal of Medicin

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英语新闻

加州英语分级G1 Act it out 03

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加州英语分级G1

加州英语分级G1 Act it out 02

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加州英语分级G1

加州英语分级G1 Act it out 01

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加州英语分级G1

加州英语分级G1 Act it out 04

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加州英语分级G1

Brazil keeper Dida out of Libtertadores qualifier

RIO DE JANEIRO, Jan. 25 (Xinhua) -- Former Brazil international goalkeeper Dida will miss Gremio's Copa Libertadores qualifying decider against Ecuador's Liga de Quito next Wednesday with a shoulder injury. Dida hurt his right shoulder during last We

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学英语单词

access transparency

altercative

alteregoism

aluminium sheet circle

arborescens keratitis

atomic meter

attributionists

Benjamin-Constant, Jean Joseph

beta-Meprodine

blade head

blast shield