問題詳情

49. What was contradictory between the volunteers’ perceptions and the researchers’ observation?
(A)The amount of coffee consumption 6 hours before bedtime.
(B)Duration of nightly sleep at three different points of coffee drinking.
(C)Sleep time and sleep quality when having coffee 6 hours before bedtime.
(D)Efficiency in falling completely asleep at three different points of coffee drinking.

參考答案

答案:C
難度:適中0.511628
統計:A(31),B(82),C(154),D(34),E(0)

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