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As the world focuses attention on Canada during the Winter Olympics in Vancouver, a sport not yet in the Olympic spotlight continues to draw competitors and tourists to Canada's Yukon Territory. Dog sledding remains one of the most difficult competit
VOA标准英语2010年(二月)
In Kenya, the specter of drought is never far from the minds of the millions who make their living on the farm. Agriculture is Kenya's most important product. The industry employs nearly three quarters of the country's workers and accounts for almost
VOA标准英语2010年(九)月
Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y
60秒科学
QUITO, June 21 (Xinhua) -- Ecuador forward Luis Fernando Saritama has been injured just days before the Copa America in Argentina, coach Reinaldo Rueda said on Tuesday. Saritama was left out of the squad following a leg injury he suffered last week d
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LONDON, Aug. 11 (Xinhua) -- Jamaica set a new world record of 36.84 seconds to win the gold medal in the men's 4x100m relay Saturday at the London Olympic Games. Jamaica broke their old record of 37.04, which they set in 2011, to defend the title the
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