单词：solution filter pump
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Marcus Pembrey is one of a select band of scientists, a band of scientists who are daring to challenge an orthodoxy . They believe the lives of our parents, grandparents, and even our great grandparen
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[00:00.63] 4.The Father of Genetics [00:04.55]His name is introduced to biology students, but often forgotten after the final exam. [00:10.76]His pioneering discoveries went unnoticed by the world until years after his death. [00:15.88]But now, in th
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Written by - George Grow (THEME) VOICE ONE: Im Doug Johnson. VOICE TWO: Barbara McClintock And Im Barbara Klein with PEOPLE IN AMERICA in VOA Special English. Today, we tell about Barbara McClintock. She was one of the most important scientists of th
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PEOPLE IN AMERICA - Barbara McClintock By George Grow Broadcast: Sunday, May 29, 2005 (THEME) VOICE ONE: I'm Doug Johnson. VOICE TWO: And I'm Barbara Klein with PEOPLE IN AMERICA in VOA Special Englis
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PEOPLE IN AMERICA - Barbara McClintock, 1902-1992: She Made Important Discoveries About Genes and Chromosomes She was the first American woman to win an unshared Nobel Prize. Transcript of radio broadcast: 03 May 2008 VOICE ONE: Im Doug Johnson. VOI
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PEOPLE IN AMERICA - Barbara McClintock, 1902-1992: She Made Discoveries about Genes and Chromosomes CHRISTOPHER CRUISE: This is PEOPLE IN AMERICA in VOA Special English. Today, Jim Tedder and Shirley Griffith tell about Barbara McClintock. She was on
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