問題詳情

28.By observing REM, or rapid eye movements, _______ to know when dreaming occurs duringsleep.
(A) it is the possibility
(B) is the possibility
(C) it is possible
(D) then is possible

參考答案

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)