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  3. The normal human daily cycle of activity is of some 7-8 hours’ sleep alternating with some 16 -17 hours’ wakefulness. Broadly sp

The normal human daily cycle of activity is of some 7-8 hours’ sleep alternating with some 16 -17 hours’ wakefulness. Broadly sp

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问题 The normal human daily cycle of activity is of some 7-8 hours’ sleep alternating with some 16 -17 hours’ wakefulness. Broadly speaking, the sleep hours normally ______ with the hours of darkness.
选项 A、conform
B、coincide
C、collide
D、comply
答案B
解析 动词词义辨析。conform with“与……相符，与……一致”；coincide with“与……一致”，强调时间上的一致性；collide with“与……相撞”；comply with“服从，遵从”。根据句中提到7—8hours’sleep，some 16—17 hours’wakefulness时间信息，只有coincide with符合要求。故答案为B。
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