問題詳情
2.航行警告電傳(NAVTEX)採用何種方式發送海事安全資訊?
(A)時間分隔
(B)頻率分隔
(C)相位分隔
(D)脈波分隔
(A)時間分隔
(B)頻率分隔
(C)相位分隔
(D)脈波分隔
參考答案
答案:A
難度:簡單0.807692
統計:A(21),B(1),C(0),D(4),E(0)
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