在船上拆下来的针阀偶件应该用（）浸泡清洗。

【名词&注释】

润滑油(lubricating oil)、液压油(hydraulic oil)

[单选题]在船上拆下来的针阀偶件应该用（）浸泡清洗。

A. A．汽油
B. B．煤油
C. C．液压油
D. D．标准润滑油

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学习资料：

[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

[单选题]Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.

A. under high pressure
B. under low pressure
C. heated to reduce viscosity
D. cooled to increase viscosity

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