问题
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Why we use index in database? How many indexes is the maximum in onetable as your sugg
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Why we use index in database? How many indexes is the maximum in onetable as your sugg
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Why do some countries permit lotteries to be held?A.The proceeds of lotteries can be used
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According to the man, why do the elderly not like using the computerized banking services?
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In the authors opinion, why do we search the stars or moon?A.Because we have made up our m
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Why do people use biblical references to describe Yosemite sometimes?A.Because it is the a