单选题The function of lubricating oil is to （）Amaintain even distribution of bearing wearBmaintain a constant oil temperatureCmaintain a pressurized film between moving surfacesDremove entrained water
单选题
The function of lubricating oil is to （）
A
maintain even distribution of bearing wear
B
maintain a constant oil temperature
C
maintain a pressurized film between moving surfaces
D
remove entrained water
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