問題詳情

15. Most earthquakes are too small to be noticed; they can only be____ by sensitive instruments.
(A)perceived
(B)sensed
(C)sensitized
(D)detected

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)