单词：selenium-layer vidicon
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Simon got a monthly bill that he didnt like. His Internet service provider, Wink, automatically withdrew $15 from his checking account each month. This was called direct payment. It made things simpler for him because it meant one less check to write
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1. visibility /ˌvɪzəˈbɪləti/ -- degree of clearness of the atmosphere, with reference to the distance at which objects can be clearly seen With the fog rolling in and visibility approaching zero, it was virtually impossible for planes to land. 在
突破英文词汇
There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th
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99 吸收金属原料的植物有助于抗癌药品的研制 AGRICULTURE REPORT September 25, 2001: Plants that Absorb MetalsBy George Grow （Start at 1'00
科技之光
By Greg Flakus Terlingua, Texas 22 February 2006 watch Desert Dwellers report Mountains, desert near Terlingua, Texas Most human beings are social animals and yet there are people who long to get far
2006年VOA标准英语（二月）
By David McAlary Washington 06 December 2006 New biological evidence casts more doubt on Libyan government charges against six imprisoned Bulgarian and Palestinian medical workers accused of deliberately infecting several-hundred Libyan children wit
2006年VOA标准英语（十二月）
By Paul Sisco Washington, DC 21 February 2007 watch New Discovery Center One of the newest attractions for visitors to Florida, the southernmost point in the continental United States, celebrates the undersea world in and around the famous Florida K
2007年VOA标准英语（二月）
By Kane Farabaugh Kangerlussuak, Greenland 24 July 2007 Greenland's glaciersshow evidence of global warming Periods of global warming and cooling have caused the terrain of Greenland to change over time -- part of the natural process of the Earth's e
2007年VOA标准英语（七月）
By David McAlary Washington 17 March 2006 Scientists report evidence that the universe was born in less than the blink of an eye, expanding instantly from sub-microscopic size to astronomical proporti
2006年VOA标准英语（三月）
The World Food Program has called on South Korea to provide $60 million in aid for North Korea. The United Nations agency says the isolated state is facing its worst food shortage in a decade. Jason Strother has more from Seoul. The South Korean Uni
VOA标准英语2008年（八月）
By Al Pessin Pentagon 18 June 2008 A group of American doctors that promotes human rights says it has examined 11 former detainees who were held by the U.S. military, and determined they were systematically tortured with the complicity of medical pe
VOA标准英语2008年（六月）
Acupuncture by Untrained Providers Poses Risks for Kids In the hands of trained practitioners, acupuncture is a safe medical treatment, even for children. But a new study finds when acupuncture is performed by untrained providers, it can pose a serio
VOA标准英语2011年(十一月)
Study Shows Vitamin E Increases Prostate Cancer Risk A number of medical studies over the years suggested that vitamin E, taken as a dietary supplement, might help prevent prostate cancer. But new research finds not only that the earlier studies were
VOA标准英语2011年(十月)
Prosperity in Turkey Creates Iftar Divide In Turkey, the Islamic fasting month of Ramadan has put the spotlight on the increasing divide between rich and poor. The country's growing affluent class, a product of a decade of unprecedented economic grow
VOA标准英语2011年(八月)
Scientists Suggest Adding Selenium to Diets in Malawi The study, which was published in the journal Scientific Reports, found that most Malawi soils do not have an adequate amount of selenium required for human nutrition. In the report, researchers a
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By Steve Schy Washington 04 September 2006 Andre Agassi waves to the crowd as he leaves the court after his loss to Benjamin Becker, September 3, 2006 American tennis icon Andre Agassi has closed out his 21-year career with a four setloss (7-6, 6-7,
2006年VOA标准英语（九月）
SCIENCE IN THE NEWS - November 12, 2002: Oldest Evidence of Jesus? / Mapping Genes that Cause Disease / 2002 World Health Report VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with
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By Jade Heilmann Dakar 19 December 2007 Africa is slowly bridging the gap that divides it from the digital world. Government officials and technology companies are trying to implement programs such as telemedicine and electronic education within the
VOA常速英语2007年（十二月）
By Phillip Wellman Dakar 16 September 2007 Efforts to reunite war-divided Ivory Coast have been fraught with difficulty, but some say the Ivorian band Magic System has been able to bring people together in a way politicians have not. The band is mark
2007年VOA标准英语（九月）
Analysts and U.S. officials say American pressure on Pakistan over counterterrorism policy has strained the relationship between that country's government and its military. As VOA Correspondent Gary Thomas reports, the two camps differ over how much
VOA标准英语2008年（十月）