单词：potyvirus konjak mosaic virus
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This is the VOA Special English Agriculture Report. Wheat supplies around the world are at their lowest level in thirty years. Wheat supplies in the United States are at their lowest in sixty years. But the United Nations Food and Agriculture Organi
VOA慢速英语2008年（二）月
Repairman: What can I do? Benjamin: The system crashed when I was surfing on the internet. Repairman: Did you go to any illegal website? Benjamin: No, But does that matter? Repairman: Yes, your computer can be easily infected by virus if you do that.
英语大赢家上册
SCIENCE IN THE NEWS - Killer Virus Brought Back From the Past, With the Hope to Avoid a New One By Cynthia Kirk and Caty Weaver Broadcast: Tuesday, October 18, 2005 (MUSIC) VOICE ONE: This is SCIENCE
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By Barry Unger Washington, DC 03 February 2006 watch Bird Flu Research report There are two new, experimental vaccines against bird flu that both make use of a cold virus and that both may work even i
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by Jill Moss Broadcast: July 23, 2003 This is Bill White with the VOA Special English Health Report. A medical company in Australia, PanBio, has developed a new test for West Nile 1)virus. The test ex
VOA2003（下）-环境与健康
CANBERRA, Sept. 6 (Xinhua) -- A rare virus that can be contracted by humans has killed a large number of Victorian pigeons after being detected in the Australian state for the first time, Agriculture Department confirmed on Tuesday. According to the
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