1.在GMDSS系統中,用於遇險警報及安全呼叫之數位選擇呼叫(DSC)所使用特高頻(VHF)第70頻道,其頻率為:(A)156.225 MHZ(B)156.325 MHZ(C)156.425 MHZ(
15. Vessel constrained by her draught means a vessel severely by her draught in her ability to devia
16. Visibility is expected to be between 1 to 3 nautical miles in your position within the next 4 ho