单词：parnsitologist
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This is Whats Trending Today. Summer does not officially begin in the United States and other countries in Earths Northern Hemisphere for more than a week. Yet you have probably heard the song of the summer of 2017. That is Luis Fonsis Despacito. Fon
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This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. Biologists, traditionally track migrations by tagging animals with devices that allow their movements to be monitored. But Homo sapiens can't be fitted wi
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By Gilbert da Costa Abuja 18 June 2007 Nigeria's top unions say they will begin an indefinite general strike after failing to reach a last-minute compromise with the government. Gilbert da Costa in Abuja reports for VOA on the buildup to what could b
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By Cathy Majtenyi Nairobi 19 December 2006 A study released Tuesday by the U.N. children's agency and the Kenyan government says Kenyans top the list of tourists who sexually exploit and abuse children 18 years of age and under at Kenya's coast. Mea
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Tunisians are savoring new media freedoms announced a week ago by the country's caretaker government following the toppling of autocratic president, Zine el-Abidine Ben Ali. However, for the Al-Kitab bookstore in downtown Tunis, the fight for free ex
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By Carol Pearson Washington, DC 08 November 2006 watch Heart Stent report Heart stents are lifesaving medical devices that help prevent heart attacks. Most of these stents are coated with various drugs, but mounting data suggest drug-coated stents c
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