单项选择题
A.Pre-lube cylinders with hand cranks
B.Open all air space drain cocks
C.Open all indicator valves
D.All of the above
单项选择题 Late fuel injection in a diesel engine is indicated by low firing pressure with （）
单项选择题 The bore of a diesel engine cylinder describes the （）
单项选择题 When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will indicated?（）