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  • VOA标准英语2011--Scientists Study Genetic Basis of Autism

    Scientists Study Genetic Basis of Autism Scientists have taken another big step toward identifying the genetic flaws which may cause autism, a type of neurological development disorder. In the latest development, laboratory mice have been genetically...

  • VOA标准英语2008年-UN Goes 'Green' on Trial Basis

    The United Nations is going green. The secretary-general has announced a new initiative to help lower the U.N.'s greenhouse gas emissions and reduce pollution. From United Nation's headquarters in New York, VOA's Margaret Besheer reports thermostats...

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