单选题A reservoir, as used in hydraulic systems aboard ship, is used to store hydraulic oilAnother function is to（）Aact as a shock absorberBmaintain the stored oil under pressureCact as a base or foundation for the power unitDeliminate pressure surges in the system
单选题
A reservoir, as used in hydraulic systems aboard ship, is used to store hydraulic oilAnother function is to（）
A
act as a shock absorber
B
maintain the stored oil under pressure
C
act as a base or foundation for the power unit
D
eliminate pressure surges in the system
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