题目详情
单选题 What is the main finding of the sleep study according to the passage
A. Sleeping for eight hours is essential for good health
B. Different people require different amounts of sleep
C. Sleeping for seven to eight hours a day is the best for cognitive performance
D. Sleeping less than four hours a day is equivalent to aging by nine years

学科:大学英语B2-2023春
时间:2023-06-02 11:50:39
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