問題詳情

11. Radar equipment is put on trucks and driven near a tornado _________ it records wind speeds and other weather data.
(A) where
(B) , where
(C) which
(D) , which

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)