問題詳情

6. What kind of pumps is applying the action of piston to force the liquid?
(A) Screw pumps
(B) Gear pumps
(C) Reciprocating pump
(D) Centrifugal pumps

參考答案

答案:C
難度:適中0.5
統計:A(7),B(7),C(17),D(3),E(0)

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