单选题 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.
【正确答案】 B
【答案解析】[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7-8 hours" sleep，some 16-17 hours" wakefulness时间信息，只有coincide with符合要求。故答案为B。