問題詳情
【題組】41. Which of the following is true of the detectors?
(A). They have not been sold to Africa
(B). They have caused many serious problems.
(C). They can find dangerous objects in water.
(D). They don’t function on the basis of science.
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)