单词：carcinoma simplex of colon
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三十一、票据（Instrument） 1.A bona fide holder for value takes free from any defect inthe title of his predecessors. 2. A check cannot be accepted. 3.An endorsement by the deawee is null and void. 4.An instrument is a document of title to mo
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by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?
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Egyptian activists have called for a protest Friday against torture, which they say continues under the nation's new army leadership. The call comes as the army pledges to help Egypt transition to the rule of law, beginning with an amended constituti
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This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.
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By Jim Fry Washington 05 December 2007 Two Republican Party candidates for U.S. president disagreed sharply last week on the use a controversial interrogation technique known as waterboarding. While much of the campaign focuses on domestic issues, ca
VOA常速英语2007年（十二月）