問題詳情
【題組】59. The author blames the lack of smoke detectors in households on the reason that ______.
(A) smoke detectors are too expensive
(B) smoke detectors often cannot work properly
(C) smoke detectors are difficult to install
(D) people are ignorant about the need for smoke detectors
參考答案
答案：D[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(2),D(2),E(0)