問題詳情

18. A recent study shows that about 45% of smartphone users check their email _____ during the day. They check it every 30-60 minutes.
(A) actually
(B) perfectly
(C) currently
(D) constantly

參考答案

答案：D
難度：適中0.642857
統計：A(1),B(0),C(2),D(9),E(0)