单选题Which of the following pumps will most affect oily water separator performance and give the worst result?（）Areciprocating pumpBvane pumpCscrew pumpDcentrifugal pump
单选题
Which of the following pumps will most affect oily water separator performance and give the worst result?（）
A
reciprocating pump
B
vane pump
C
screw pump
D
centrifugal pump
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