单词：tetrapolis
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Providing emergency contraception before it's needed does not affect unwanted pregnancy rate Philip Graitcer | Atlanta, Georgia 22 March 2010 Family planning experts wondered if having emergency contraceptives on hand would prevent unwanted pregnanci
VOA标准英语2010年(三月)
From NPR News in Washington, Im Craig Windham. Democratic Senator Evan Bayh says he will not run for a third term in office. Bayh says he loves representing the people of Indiana, but he does not love Congress. For some time, Ive had a growing convic
2010年NPR美国国家公共电台2月
This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang
Scientific American(一)月
T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗
医务英语
AS IT IS 2015-04-12 Technology Center in Moscow Seeks Western Companies 莫斯科科技中心寻求西方公司加入 Russian officials are urging Western companies to open offices in a technology center in Moscow. They hope the center will help the
2015年VOA慢速英语(四)月
BBC Learning English London Life Royal Albert Hall Yvonne:Frank Sinatra, Pavarotti and The Beatles all performed here and even Winston Churchill spoke here. Today, join me, Yvonne Archer on a visit to the Royal Albert Hall with London Life from bbcl
伦敦生活
Science and Technolgy 科技 Medical devices 医疗设备 Inhaling information 有关吸入器的吸入信息 How to collect data on asthma while, at the same time, treating it 在处置哮喘的同时如何收集哮喘数据 IN 1985 and 1986 an epid
经济学人科技系列
These laws were so strict that people still speak of Draconian severity. 这些法律十分严厉以致人们今天还在谈论德拉古的严厉。 But the people of Athens, who had roamed the seas in their ships, and had heard and seen so many diff
世界小史
By David Byrd Miami 05 February 2007 The Indianapolis Colts have defeated the Chicago Bears, 29-17 to win the National Football League's Super Bowl in Miami, Florida. As VOA'S David Byrd reports, the Colts captured the title for the first time since
2007年VOA标准英语（二月）
10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur
万物简史
Florianpolis, Brazil 巴西，弗洛里亚诺波利斯 With an abundance of beautiful beaches and rent at half the price of that in Rio, Florianpolis in southern Brazil has attracted a growing number of nomads to its burgeoning tech and start-up scen
英语新闻
Business 商业报道 Cinema economics 影院经济学 Bigger on the inside 在里面更大 Now showing at your local cinema: operas, circuses and television shows 现在正在您当地的影院上映的：歌剧，马戏团和电视节目 WHOVIANS h
经济学人商业系列