单词:spermatiation
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THE MAKING OF A NATION -September 12, 2002: John Kennedy, Part 1 / First 100 Days By Jerilyn Watson VOICE 1: This is Rich Kleinfeldt. VOICE 2: And this is Phil Murray with THE MAKING OF A NATION, a VO
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New Survey Finds 1/3 of World's Population Overweight Obesity is not just an American problem anymore. A recent international survey by the Worldwatch Institute, found that nearly two billion people around the world are overweight. Health statistics
By Lisa Schlein Geneva 20 May 2007 Newly arrived internally displaced ethnic Tamils prepare themselves to be registered with camp officials in Kiran, Sri Lanka (File Photo) The World Food Program warns renewed fighting in Sri Lanka's long-running civ
Beijing, Sept. 6 (Xinhua) -- A sperm donation scandal disclosed recently has aroused growing concern in the United States. According to the New York Times' report, Ryan Kramer, the son of a donor, found that he has more than 150 half-siblings - they
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo