单词：mereologist
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PEOPLE IN AMERICA -January 13, 2002: Isaac Stern By Shelley Gollust VOICE ONE: I’m Sarah Long. VOICE TWO: And I’m Steve Ember with the VOA Special English program, PEOPLE IN AMERICA. Today we tell
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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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