16.下列何者是船用高壓主鍋爐給水泵的類型?
(A)往復式給水泵
(B)射水泵(Injector)
(C)多級式離心泵
(D)齒輪泵

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統計: A(0), B(0), C(1), D(0), E(0) #1197395