医学研究表明，长期让闹钟来叫醒处于深度睡眠的人，会导致人的记

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医学研究表明，长期让闹钟来叫醒处于深度睡眠的人，会导致人的记忆认知功能减退，还会增加高血压和心脏病患病的风险，这说明（）

A．要重视量的积累	B．量变是渐进的显著的变化
C．坚持适度原则	D．量的变化必然引起质的变化

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