单词：crystallogenetic history
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The Journal of the American Medical Association doesnt usually report autopsy results. But they make an exception this week: for King Tut. The study of the boy king involved DNA analysis and CAT scans. Researchers used genetic fingerprints from Tut a
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New Report Shares Secrets of Rare Blue Diamonds History The Hope Diamond is one of the worlds most famous jewels. It was in the possession of a series of people: kings, bankers, rich women and thieves, before its arrival 60 years ago at the Smithsoni
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EXPLORATIONS -April 3, 2002: Spacesuit History By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell a
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1. counterproductive adj.产生相反效果(结果)的e.g. It is counterproductive to be too tough: it just makes the staff resentful. e.g. Although the speaker overlooks certain circumstances in which undueskepticism might be counterproductive, and
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A: Have you been having any problems lately? B: No, but the nurse at school says that I should have my blood pressure checked. A: Do you have a history of high blood pressure? B: No, I have never been told that I have high blood pressure. A: High blo
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EXPLORATIONS -August 7, 2002: International Spy Museum VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell about a mu
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