单选题When normal operating pressure is applied to the hydraulic oil used in a high-pressure system, the oil ().Aviscosity will decreaseBvolume will increaseCvolume will decreaseDpour point will be reduced
单选题
When normal operating pressure is applied to the hydraulic oil used in a high-pressure system, the oil ().
A
viscosity will decrease
B
volume will increase
C
volume will decrease
D
pour point will be reduced
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