题目内容
— I slept for only five hours last night.
— Oh, that’s too bad. Enough sleep is ______ to your health.
A. similar B. harmful
C. friendly D. necessary
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题目内容
— I slept for only five hours last night.
— Oh, that’s too bad. Enough sleep is ______ to your health.
A. similar B. harmful
C. friendly D. necessary