問題詳情

11. Which is not a type of the usually used pumps on the ship?
(A) Centrifugal pump
(B) Fin pump
(C) Gear pump
(D) Screw pump

參考答案

答案:B
難度:簡單0.777778
統計:A(1),B(14),C(2),D(0),E(0)

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