2. 外语
  3. According to the writer, we need to sleep In passive sleep, ______.

According to the writer, we need to sleep In passive sleep, ______.

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问题 According to the writer, we need to sleep
In passive sleep, ______.
选项 A、the brain is active
B、the heart beats faster than usual
C、the body is still
D、the body temperature rises
答案C
解析 答案应该选C。因为文章提到，In passive sleep，the body is at rest．The heart slows down．The body processes become very slow． We move very little．And the brain becomes very inactive。D的情况应该在active sleep里面。
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