問題詳情

20. is sometimes used for piston cooling since its leakage into the crankcase would not causeadditional problems.
(A)Diesel oil
(B)Hydraulic oil
(C)Lubricant oil
(D)Mineral oil

參考答案

答案：C
難度：簡單0.857143
統計：A(1),B(0),C(18),D(1),E(0)