单项选择题
Every ship must fitted with（）SART, and（）two-way VHF radio telephone.
A.1,2 B.2,3 C.2,1 D.3,2
单项选择题 In INMASAT-A service code 32（）.
单项选择题 To establish a communication channel for the telex service in the INMARSAT-A terminal, you should first（）.
单项选择题 What part of the Inmarsat will the SES get access to if the commissioning is successful?（）
