After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recove

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问题    After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the

选项 A、Sleep
B、Good Health
C、Dreams
D、Work and Rest

答案A

解析 本篇全文谈的是睡眠的四个阶段,所以A是最佳选择。不能选C,梦是作为睡眠的一个阶段提出的。
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