单项选择题
The high pressure in fuel injection system of the diesel engine is produced by the （）.
A.injector pump B.fuel injector C.governor D.turbocharger
单项选择题 The heart of the diesel engine is the （） where the fuel is burnt and the power developed.
单项选择题 The hand steering is a method by which the motion of the rudder is controlled with （）.
单项选择题 The gudgeon pin is carried in （） in the piston skirt.
