单词：modified von neumann ratio
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Avon is the worlds largest cosmetics and perfume company. Its also one of the oldest. It was founded in New York in 1886 by a door-to-door book salesman David H. McConnell who gave away perfume to encourage sales. The perfume became more popular than
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Mosquitoes Genetically Modified to Prevent Malaria There may soon be a new weapon in the fight against malaria - a genetically-modified mosquito that kills the disease-causing parasite once it becomes infected. Malaria is a leading cause of death wor
VOA标准英语2012年(一月)
Social Media Drives Publicity in Trayvon Martin Case Across the United States, African Americans mobilized in memory of 17-year-old Trayvon Martin, and in protest over the fact that the man who shot him had initially avoided criminal charges. Early o
VOA标准英语2012年(五月)
图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t
数学英语
图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt
数学英语
Broadcast:Feb 25, 2003 By Mario Ritter This is the VOA Special English Agriculture Report. The Bush administration has been trying to get the European Union to accept new genetically engineered crops.
VOA2003（上）-社会广角
First Ladies in Africa Creating Change for Women Last month, The Washington Post published an opinion piece about reports that the United States government had separated 2,000 children from their parents. The writer was Laura Bush, wife of former U.S
2018年VOA慢速英语(七)月
It's crucial to realize that the rate of progress doesn't matter, because any progress is enough to get us into the end zone. 我们要知道这个进程的速度并不重要，因为任何进程都足够让我们走进死胡同。 We don't need Moor
TED演讲科技篇
Jen: Hello and welcome to 6 Minute English from BBC Learning English. I'm Jen and with me today is Neil. Neil: Hello there. Jen: Todays story is all about allergies. If you have an allergy to something, your body reacts to it in a negative way. Do yo
六分钟英语
Without warning today, president Obama decided to blow open the argument about race and bias in America, calling on the nation to do some soul searching, and six days after the verdict getting personal, he said he could have been Trayvon Martin. Afte
万花筒2013年
Under UV light, this mosquito larva reveals a red fluorescent marker in its nervous system, causing eyes and nerves to glow. The marker's presence tells the researchers in Riehle's team that this individual carries the genetic construct rendering it
VOA标准英语2010年(七)月
By Gary Thomas Washington, D.C 17 November 2009 Afghanistan President Hamid Karzai has been roundly criticized in the international community for presiding over a corrupt government. A new report reinforces the perception of widespread corruption in
VOA标准英语2009年(十一月)
RS: I'm Rosanne Skirble with Avi Arditti, and this week on Wordmaster: Shakespeare in American English. This is the seventy-fifth anniversary year of the Folger Shakespeare Library, home to the largest collection of Shakespeare materials in the world
词汇大师(Wordmaster)
BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
英语新闻
SHANGHAI, Jan. 7 (Xinhua) -- Europe's largest carmaker, Volkswagen AG（大众汽车公司）, said Friday that it had sold 37 percent more vehicles on the Chinese mainland and Hong Kong in 2010, compared to sales in 2009. With 1.92 million vehicles
英语新闻
China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem
英闻天下
Economics brief: six big ideas. 经济概要：六大经济思想。 Game theory: Prison breakthrough 博弈论：越狱 The fifth of our series on seminal economic ideas looks at the Nash equilibrium. 六大经济思想之五纳什均衡。 JOHN NAS
经济学人财经系列
WILLIAM BRANGHAM: The Islamic State in Iraq and Syria, known as ISIS, has claimed credit for Friday's terrorist attack in Paris. And the French government also blames the Islamic militant group. Peter Neumann studies and teaches terrorism and radical
PBS访谈社会系列
JUDY WOODRUFF: The New York Times reported late today that one of the brothers being hunted for the Paris attack received training at an al-Qaida training camp in Yemen. This is according to a senior American official. The brothers, who were born and
PBS访谈社会系列
HARI SREENIVASAN: Anis Amri, the man suspected of carrying out Monday's attack on a Berlin Christmas market, was well known to German authorities. He was under surveillance for six months this year and was slated for deportation. But his home country
PBS访谈社会系列