問題詳情

28.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:適中0.565217
統計:A(3),B(13),C(1),D(2),E(0)

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