单选题The static suction lift of a pump is the difference in elevation between the （）.Acenterline of the pump and the level of the liquid in the suction well when the source of liquid is below the pumpBcenterline of the pump and the suction liquid level when the source of liquid is above the pumpCcenterline of the pump and the level of the discharge liquidDliquid levels of the suction and discharge
单选题
The static suction lift of a pump is the difference in elevation between the （）.
A
centerline of the pump and the level of the liquid in the suction well when the source of liquid is below the pump
B
centerline of the pump and the suction liquid level when the source of liquid is above the pump
C
centerline of the pump and the level of the discharge liquid
D
liquid levels of the suction and discharge
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