单项选择题
The two strokes of a two-stroke/cycle diesel engine are （）
A.power and intake B.intake and exhaust C.exhaust and compression D.compression and power
单项选择题 Which of the items listed causes a direct acting mechanical governor to operate the engine fuel control linkage?（）
单项选择题 Combustion knock occurring in a diesel engine can be caused by （）
单项选择题 Crankcase explosions in propulsion diesel result from（）
