問題詳情

46 To avoid the pumps being shut down due to malfunction in the control system, they can only be switchedoff_____ by a firefighter.
(A) momentarily
(B)severely
(C)voluntarily
(D)manually

參考答案

答案:D
難度:適中0.587156
統計:A(11),B(9),C(15),D(64),E(0)

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