单选题Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the （）.Acetane numberBpour pointCviscosity temperatureDquality of the oil
单选题
Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the （）.
A
cetane number
B
pour point
C
viscosity temperature
D
quality of the oil
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