单选题Sluggish response or action of the hydraulic actuators may be a result of （）.Ainsufficient loadBexcessively high oil viscosityCrelief-valve pressure setting too highDreservoir level being maintained two inches above normal
单选题
Sluggish response or action of the hydraulic actuators may be a result of （）.
A
insufficient load
B
excessively high oil viscosity
C
relief-valve pressure setting too high
D
reservoir level being maintained two inches above normal
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