单项选择题
Combustion knock will most likely occur as a result of using a fuel with（）
A.low ignition quality B.a high volatility C.low ignition delay D.a high cetane number
单项选择题 High exhaust temperatures from all of cylinder of a turbocharged, four-stroke/cycle diesel engine can be caused by an（）
单项选择题 One of the factors limiting the amount of load which can be put on a modern marine diesel engine is the （）
单项选择题 A diesel engine may fail to start due to （）
