Weallknowthatthenormalhumandailycycleofactivityisofsome...
問題詳情：Weallknowthatthenormalhumandailycycleofactivityisofsome7—8hours’sleepalternationwithsome16—17hours’wakefulnessandthat,broadlyspeaking,thesleepnormallycoincideswith(與一致)thehoursofdarknes...