单词:ixeris denticulata (houttuyn)stebbins
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Economics Report - US Congressional Committee Fails to Identify Budget Cuts This is the VOA Special English Economics Report. An American congressional committee reported failure earlier this week. The committee failed in its effort to cut the federa
By Melinda Smith Washington, DC 14 February 2007 watch Heart Disease in Women Figures from the World Health Organization show that 17 million people die of cardiovascular disease each year. Symptoms for heart disease in men and women often vary. But
By Jessica Berman Washington 17 January 2007 If or when it strikes, the avian flu pandemic would likely kill victims by switching on an uncontrolled immune system response. That's according to researchers, who studied a 90-year-old flu virus in the h
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
By Jim Malone Washington 01 June 2007 Former U.S. Senator Fred Thompson's expected entry into the 2008 presidential campaign is likely to shake up the battle for the Republican Party nomination. VOA National correspondent Jim Malone has more from Was
人类的大脑是一个迷 对于我们的身体来说,它是出奇地大。它的重量和那一个奇形怪状的密集的大脑皮层消耗了大量的能量。但是:为什么?神经学家苏珊娜带上她的侦探帽,带领我们探索这