問題詳情

24.When the general emergency alarm is sounded, which consists of seven short blasts and one________ blast, all crew members have to go to their assembly station.
(A)prolonged
(B)prolapsed
(C)prologed
(D)prologued

參考答案

答案:A
難度:簡單0.896104
統計:A(69),B(3),C(5),D(0),E(0)

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