A.5h B.6h C.7h D.8h E.9h
A.睡眠時(shí) B.睡眠中斷時(shí) C.睡眠減少時(shí) D.失眠時(shí) E.清醒時(shí)
A.25% B.35% C.45% D.55% E.65%