单选题One function provided by a hydraulic accumulator is to（）Aprovide an area where air can separate from the oilBprovide an area to separate solid contaminants from the oilCact as an oil and water separatorDabsorb shocks occurring in the system
单选题
One function provided by a hydraulic accumulator is to（）
A
provide an area where air can separate from the oil
B
provide an area to separate solid contaminants from the oil
C
act as an oil and water separator
D
absorb shocks occurring in the system
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