单项选择题
Under the International Code of Signals how are geographical locations such as New York City transmitted?（）
A.A commonly used abbreviation such as NYC is used B.The name is spelled out C.The geographical coordinates are used D.The radio station call sign for the nearest marine radio station is used
单项选择题 The principal advantage of NAVTEX radio warnings is that（）.
单项选择题 The Master shall insure that the Emergency Position Indicating Radiobeacon (EPIRB) is（）.
单项选择题 The maritime radio system consisting of a series of coast stations transmitting coastal warnings is called（）.
