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)

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