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翻译题：Danish researchers gave physical exams to 5,249 healthy middle-aged and elderly men beginning in 19 7 1. In 1985 and 1986, they tracked survivors, of whom there were 3,3 5 4. Of these, 2,798 had sufficient data on heart rate and oxygen consum

提问人：ylm发布时间：2021-05-04

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