問題詳情

34. is sometimes used for piston cooling since its leakage into the crankcase would notcause additional problems.
(A)Fuel oil
(B)Hydraulic oil
(C)Lubricating oil
(D)Gasoline oil

參考答案

答案：C
難度：簡單0.75
統計：A(4),B(1),C(18),D(1),E(0)