青年在网络社区的危险行为 (2)
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科学60秒:影响广告效益的神奇因素
A lot of people watch political debates on TV. Which means great opportunities for advertisers. But an ad for an island getaway or ___1___ cuisine will only sound ___2___ if the viewer agrees wit...
肺结核研究的新进展 (2)
Ajit Lalvani ELISpot Daniel Hoft MissouriAjit Lalvani from Imperial College London led an international team in developing the blood test, called ELISpot. A study showed that the ELISpot blood te...
民间吉他艺人Lela Violao(2)
讲述民间艺人Lela Violao的故事Even as recent as five years ago, the Cape Verdean government asked for international aid after a bad harvest. But Violao says things are changing for the island. "...
异形蚊子(2)
科学家正在进行异形蚊子在抵御疟疾病流行的研究Marcelo Jacobs-Lorena is with the Malaria Research Institute at Johns Hopkins University in Baltimore, Maryland. Jacobs-Lorena says investigators creat...