单选题The temperature difference between the inlet and outlet temperature of the lube oil cooler in the lubricating system for the diesel engine is generally between （）.A8-10℃B10-12℃C10-15℃D10-20℃
单选题
The temperature difference between the inlet and outlet temperature of the lube oil cooler in the lubricating system for the diesel engine is generally between （）.
A
8-10℃
B
10-12℃
C
10-15℃
D
10-20℃
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