n. (McNeill)人名；(英)麦克尼尔

SSS 2010-05-18

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? Could the eradication of smallpox have been a factor in the spread of HIV? Thats the question posed by researchers in the journal BMC Immunology, who think that the vacc

发表于:2018-12-24 / 阅读(132) / 评论(0)

Scientific American(五)月

天花疫苗能抵制艾滋病?(有声)

Could the eradication of smallpox have been a factor in the spread of HIV? Thats the question posed by researchers in the journal BMC Immunology, who think that the vaccine might have offered partial protection against HIV. As smallpox was wiped out,

发表于:2019-01-02 / 阅读(151) / 评论(0)

60秒科学

VOA常速英语2008年-NATO Says Taliban Not Surging, But More Foreign

By Al Pessin Washington 06 February 2008 The top NATO commander in Afghanistan is disputing claims that the Taliban is experiencing a resurgence and that the recent increase in violence proves it. The commander also says the number of foreign forces

发表于:2019-01-31 / 阅读(157) / 评论(0)

VOA常速英语2008年（二月）

2007年VOA标准英语-NATO Commander Says World Must Do More for Afgh

By Al Pessin Pentagon 05 June 2007 The commander of NATO forces in Afghanistan says the international community is not doing enough to provide troops and a coordinated reconstruction effort to help stabilize the country. American McNeill spoke from A

发表于:2019-02-09 / 阅读(232) / 评论(0)

2007年VOA标准英语（六月）

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