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【单选题】
According to the passage, what was the percentage of American adults doing regular physical exercises two years ago?A.
About 70%.
B.
Nearly 60%.
C.
Almost 50%.
D.
More than 12%.
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【简答题】For the record, I have tried almost every drug and liked none, disproving the popular theory that a whiff of opium will enslave the mind. (Para.2) ____________I have tried almost every drug and liked ...
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