单项选择题
Problems with the diesel engine fuel injection pump are usually caused by（）
A.improper adjustment B.contaminated fuel C.kinked fuel lines D.excessive engine vibration
单项选择题 Diesel engine cylinder head test cocks are used to（）
单项选择题 A turbocharged diesel engine will have an intake manifold pressure（）
单项选择题 A leaking diesel engine fuel injector will cause（）
