单词：general run of the market
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By Nancy Steinbach Broadcast: October 8, 2003 This is Faith Lapidus with the VOA Special English Health Report. The World Health Organization says that each year almost seventeen-million people die of
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By David McAlary Washington 11 May 2006 Scientists have developed a cheap, rapid test to determine who has trachoma, the leading infectious cause of blindness in poor countries. The researchers say th
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By Nancy Steinbach Broadcast: July 30, 2003 This is Bill White with the VOA Special English Health Report. A medical study says foods rich in a kind of fat may help prevent Alzheimer's disease. Alzhei
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By David McAlary Washington 20 March 2007 Black Americans do not live as long as white Americans, but a new study shows that the gap in life expectancy is slowly closing. VOA's David McAlary says the findings explain some of the reasons why. Life exp
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By David McAlary Washington 23 May 2006 Chickens at US farm Scientists have developed an efficient, cheap way to vaccinate birds against avian influenza and possibly prevent the spread of the deadly H
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