单选题When comparing different fuels for different engines, the ignition quality of diesel fuel oils becomes a less critical consideration as （）Athe amount of lube oil additives increaseBpiston speeds increaseCinjection pressure decreaseDengine speeds decrease
单选题
When comparing different fuels for different engines, the ignition quality of diesel fuel oils becomes a less critical consideration as （）
A
the amount of lube oil additives increase
B
piston speeds increase
C
injection pressure decrease
D
engine speeds decrease
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