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by Jason Marshall In todays article, were wrapping-up our introductory series on fundamental statistics by talking about how knowledge of statistical quantities like the mean and standard deviation can help you understand the significance of the late
数学英语
[00:04.88]Lesson 53 1 Dialogue [00:11.26]Jane is asking Zhou Lan for advice.She wants to improve her biology. [00:18.42]Hello,Zhou Lan .Can I ask you for some advice? [00:23.67]Of course. [00:26.33]Well,I've recently started biology. [00:30.98]I real
高中英语人教版高一
This is the VOA Special English Development Report. United Nations Secretary-General Ban Ki-moon speaks at the World Summit on Food Security Last week, the United Nations held a World Summit on Food Security. But the three-day meeting in Rome produc
VOA慢速英语2009年（十一）月
Daniel: Excuse me, doc. I am not feeling well. Can you help me? Doctor 1: Yes, but not here. Have you got registered yet? Daniel: No, I haven't. Where do I go for that? Doctor 1: The registration office. Did you bring your records with you? Daniel: Y
英语大赢家上册
Commentator and personal finance advisor Liz Pullian Weston says Congress could pass other laws that would mean fewer people would need to file for bankruptcy. First, we need to reinstate usury laws. It seems almost quaint now. But thirty years ago
2005年NPR美国国家公共电台
By Jim Malone and Kathy Scarrah Washington, DC 16 February 2006 view War on Terror report Politics and the War on Terror, al-Qaida leader Osama bin Laden President Bush continues his push to rally dom
2006年VOA标准英语（二月）
This is the VOA Special English Development Report. Guinea worm disease usually does not kill, but it is extremely painful. It prevents people from caring for their farms, their homes and sometimes even themselves. Guinea worms can grow up to one me
VOA慢速英语2008年（九）月
By Kari Barber Dakar 26 August 2007 Analysts in Nigeria are applauding the government for halting a plan by the Central Bank to change the nation's currency, the naira. On Saturday, Nigerian President Umaru Yar'Adua said the Central Bank's governor h
2007年VOA标准英语（八月）
Ugandan police inspect the destroyed Ethiopian Village restaurant in Kampala after twin bomb blasts tore through crowds of football fans, killing 64 people, 11 Jul 2010 The bodies of seven Ethiopian and Eritrean victims of the Uganda bomb attacks hav
VOA标准英语2010年(七)月
Ecology is becoming more and more a question of economy: how much would it cost to reduce emissions; how much would we save by weatherproofing buildings. But analysts meeting in Bali for a summit on the environment say that, to save the planet, human
VOA标准英语2010年(二月)
The Associated Press reports Monday that Rolls-Royce will temporarily replace entire engines on A380 Superjumbo jets, after an oil leak in an engine earlier this month caused a fire in the engine and a catastrophic failure. British jet-engine maker R
VOA标准英语2010年(十一)月
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VOA标准英语2010年(十一)月
Turkey's controversial Ilisu dam project has been dealt a severe blow. An international consortium of German, Austrian and Swiss companies withdrew their financial support last week, accusing Turkey of failing to meet environmental concerns and comm
VOA标准英语2009年(七月)
HIV Trial Yields Disappointing Results A large-scale HIV prevention trial among African women has yielded disappointing results. But the outcome may be more the fault of behavior than the prevention methods used in the study. The trial is known as VO
VOA标准英语2013年(三月)
By Kurt Achin Seoul 14 April 2008 South Korean President Lee Myung-bak has departed South Korea for a week of summit diplomacy aimed at turning a new page in ties with Japan and the United States. Lee administration officials say the president is par
VOA常速英语2008年（四月）
By Barry Newhouse Islamabad 01 November 2007 A suicide bomb attack on a Pakistani Air Force bus has killed at least eight people and wounded several more. The attack comes as officials reported some 70 more militants have been killed in the latest fi
VOA常速英语2007年（十一月）
By Carol Pearson Washington 13 March 2008 Only three people worldwide have received partial face transplants, two in France and one in China. But now a hospital in Boston is ready to do the next one. VOA's Carol Pearson has more.
VOA标准英语2008年（三月）
By Peter Fedynsky Gdansk, Poland 02 November 2009 The collapse of the Berlin Wall ended decades of anti-communist protests by people living in Eastern and Central Europe. Authorities there often used deadly force to put down protests, yet they were
VOA标准英语2009年(十一月)
By Lisa Bryant Paris 08 February 2008 More than two years after violent suburban riots tore through France, the country's president Nicolas Sarkozy will unveil an ambitious plan Friday to turn around some of the poorest and grittiest towns that are h
VOA常速英语2008年（二月）
By Uma Ramiah Dakar 13 March 2008 The Organization of the Islamic Conference summit has opened in Senegal's capital, Dakar. The heads of state are discussing negative views of Islam, solidarity with poorer Muslim nations, and helping Palestinians. Fo
VOA标准英语2008年（三月）