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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
This is the VOA Special English Education Report. Each new school year brings fresh reminders of what educators call the summer learning gap. Some call it the summer learning setback. Put simply, it means the longer kids are out of school, the more
VOA慢速英语2008年（八）月
VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Barbara Klein. Visitors to Washington, D.C., in the summer often want to stay inside air-conditioned museums. The cooler days of fall are a good time t
VOA慢速英语2009年（九）月
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
By Carol Pearson Washington, DC 09 February 2007 watch Diet Drug report A diet drug that now is only available by prescription will soon be available over the counter. In the United States and other countries it is expected to be on drug store shelv
2007年VOA标准英语（二月）
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)
美国之音 VOA Standard English Latest Updates VOA Standard EnglishVOA Standard English VOA Standard English Archives VOA Special EnglishTechnology ReportThis is AmericaAgriculture ReportScience in the NewsHealth ReportExplorationsEducation ReportT
VOA标准英语2010年(十一)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 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）
人类的大脑是一个迷 对于我们的身体来说，它是出奇地大。它的重量和那一个奇形怪状的密集的大脑皮层消耗了大量的能量。但是：为什么？神经学家苏珊娜带上她的侦探帽，带领我们探索这
TED公开课:美妙的神经系统
By Scott Stearns Dar es Salaam 16 February 2008 President Bush is in Africa at the start of a five-nation trip focusing on economic development and the fight against HIV/AIDS and malaria. VOA White House Correspondent Scott Stearns reports, Mr. Bush
VOA常速英语2008年（二月）
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）