Why do some animals sleep in wintertime? Why don’t animals need food when they sleep is winter?

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问题 Why do some animals sleep in wintertime?
Why don’t animals need food when they sleep is winter?

选项 A、Because it’s cold.
B、Because they don’t waste energy.
C、Because they eat less.

答案B

解析根据第二段第二句可知在冬眠时动物不移动，因而不需要消耗体力，所以答案为B。

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