单选题Which of the following will be the function of lubricating oil used in marine engines?（）Ato remove heat from oil cooled pistonsBto wash away wear detritusCto neutralize acidic productsDall of the above
单选题
Which of the following will be the function of lubricating oil used in marine engines?（）
A
to remove heat from oil cooled pistons
B
to wash away wear detritus
C
to neutralize acidic products
D
all of the above
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