阿摩線上測驗
10. Low-speed diesel engines require ________ fed into the cylinder liners to provide lubrication of the cylinder walls.
(A) cylinder oil
(B) gear oil
(C) hydraulic oil
(D) frozen oil
答案：登入後查看
統計： A(270), B(23), C(20), D(8), E(0) #3407838
統計： A(270), B(23), C(20), D(8), E(0) #3407838
