問題詳情

【題組】23.What provides autos with electric power in an automated highway system?
(A)) A rail.
(B)) An engine.
(C)) A retractable arm.
(D)) A computer controller.

參考答案

答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)