问题
单项选择题
The maritime access code of telephone mode in INMARSAT-A terminal for the IOR is().
A.871
B.872
C.873
D.874
答案
参考答案:C
The maritime access code of telephone mode in INMARSAT-A terminal for the IOR is().
A.871
B.872
C.873
D.874
参考答案:C