题海让大学四年没有难题
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单选题 What can we learn about the sleep disorders mentioned in the fourth paragraph

A. About 70 million Europeans suffer from sleep disorders

B. About 45 million Americans have different sleep disorders

C. Americans and Europeans can't figure out how to sleep better

D. Lifestyle and environment are among the causes of sleep disorders

学科:大学基础英语2(2024-2025-2)

时间:2025-05-12 21:47:04

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