問題詳情
32. When is fuel injected into a cylinder of diesel engines ?
(A) before air in the cylinder is compressed
(B) after air in the cylinder is compressed
(C) after combustion gases in the cylinder have expanded
(D) as air is taken into the cylinder
參考答案
答案：B
難度：簡單0.733333
統計：A(2),B(11),C(2),D(0),E(0)