問題詳情

33. Inor near an area of restricted visibility, a vessel not under command shall sound at intervalsof not more than two minutes .
(A) one prolonged blast
(B) two prolonged blast
(C) one prolonged blast followed by two short blasts
(D) one prolonged blast followed by three short blasts

參考答案

答案:C
難度:非常困難0
統計:A(0),B(0),C(0),D(1),E(0)

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