The WWNWS establishes three types of navigational warning:（）.

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（）.

A.medical assistance
B.medical advise
C.maritime assistance
D.technical assistance

单项选择题To establish a communication channel for the telex service in the INMARSAT-A terminal, you should first（）.

A.establish a communication channel from the CES, via the International Telex network to the final destination
B.set up a communication channel from your SES, via a satellite, to a CES within your ocean region
C.set up a channel directly to the addressee at the destination
D.establish a channel from your terminal, via the International telex network to a CES within your ocean region

单项选择题What part of the Inmarsat will the SES get access to if the commissioning is successful?（）

A.The SES
B.The space segment
C.Any CES
D.The CES decided by the applicant

单项选择题Without permission of（）, a ship earth station can not enter the system.

A.ITU
B.IMO
C.INMARSAT ORGANIZATION
D.the nearest CES