以霧號發出船舶遇險信號時，其發送的頻率為何？(A)每一分鐘發出一響(B)每四十秒鐘發出一響(C)每二十秒鐘發出一響(D)持續發出

問題詳情

32.以霧號發出船舶遇險信號時，其發送的頻率為何？
(A)每一分鐘發出一響
(B)每四十秒鐘發出一響
(C)每二十秒鐘發出一響
(D)持續發出

參考答案

答案：D
難度：計算中-1
書單：沒有書單，新增

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