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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. April 25th was World Malaria Day. The mosquito-borne disease is still one of the biggest killers in developing countries with a death toll of a million
发表于:2018-12-24 / 阅读(49) / 评论(0)
Scientific American(四)月
Kurt Achin It is rainy season in Southeast Asia, and the region is facing its annual battle with dengue fever and other mosquito-borne diseases. The World Health Organization says such diseases are a
发表于:2019-01-11 / 阅读(56) / 评论(0)
VOA2004(上)--国际时事
Under UV light, this mosquito larva reveals a red fluorescent marker in its nervous system, causing eyes and nerves to glow. The marker's presence tells the researchers in Riehle's team that this individual carries the genetic construct rendering it
发表于:2019-01-13 / 阅读(63) / 评论(0)
VOA标准英语2010年(七)月