Why is the question of "how easily people can get used to working at flight" no mere academic one? It is implied in the last pa

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问题 Why is the question of "how easily people can get used to working at flight" no mere academic one?
It is implied in the last paragraph that a low body temperature indicates that a person)

选项 A、has just been awake from sleep
B、can not work night shifts
C、should go to sleep at once
D、is less productive

答案D

解析 参阅第前题题解与注解。
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