单项选择题

Combustion knock occurring in a diesel engine can be caused by （）.

A.excessive fuel penetration
B.prolonged injection lag
C.reduced ignition lag
D.prolonged ignition lag

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Combustion knock can occur in the cylinders of a diesel...

单项选择题Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.

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D.rapid vaporization of injected fuel droplets

船舶动力装置

Combustion knock occurring in a diesel engine can be caused by （）.