单选题Which of the following conditions is most likely to occur when unburned fuel contaminates the crankcase of a diesel engine?（）ALube oil is diluted and its viscosity is reducedBSulfuric acid is formedCBearings become pitted ad immediately failDValve stems develop sludge deposits
单选题
Which of the following conditions is most likely to occur when unburned fuel contaminates the crankcase of a diesel engine?（）
A
Lube oil is diluted and its viscosity is reduced
B
Sulfuric acid is formed
C
Bearings become pitted ad immediately fail
D
Valve stems develop sludge deposits
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