Tom was at a loss as to how a car worked so it was that he knew nothing about how to rep

问题补充：

Tom was at a loss as to how a car worked, so it was that he knew nothing about how to repair cars.

A. apparent

B. absurd

C. confused

D. complicated

答案：

(答案→)A. apparent

B. absurd

C. confused

D. complicated

解析：句意：汤姆对于车如何发动起来他不知所措，所以很明显他对于如何修车一无所知。apparent显然的； absurd 荒缪的； confused 困惑的； complicated复杂的。根据句意故选A。