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By Paul Sisco Washington, D.C. 26 July 2007 Representatives from American auto manufacturer General Motors recently were in Washington, D.C. to showcase the electric Chevy Volt. GM says the vehicle will change the way people commute, reducing emissi
2007年VOA标准英语（七月）
By Tendai Maphosa London 29 June 2007 Hours after British police defused a bomb in an abandoned car in London's theater district, police say they have found bomb components in a second vehicle in central London. Authorities say both cars contained ca
2007年VOA标准英语（六月）
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a
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农业与发展
Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长
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By Alisha Ryu Mogadishu 12 June 2007 Police in the Somali capital, Mogadishu, have intercepted a car loaded with explosives they say was going to be used against the interim government. VOA Correspondent Alisha Ryu in Mogadishu was given an exclusive
2007年VOA标准英语（六月）