单选题
1分
In addition to meeting the requirement of sea area Al and A2, every ship engaged on voyage in sea ar...
In addition to meeting the requirement of sea area Al and A2, every ship engaged on voyage in sea area A4 shall be provided with______
参考答案: C
参考解析: 除了满足A1和A2海区的要求外,每一个航行于A4海区的船舶还应配备带有DSC功能的中高频无线电设备。