問題詳情

25. There are three types of centrifugal pumps. Which is not?
(A) Diffuser
(B) Volute
(C) Fan-shaped
(D) Volute-Diffuser

參考答案

答案:C
難度:適中0.666667
統計:A(6),B(4),C(22),D(1),E(0)

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