After successful commissioning, the（）will permit the SES access to system.

单项选择题During a（）period, as a newly commissioned SES, your IMN will be past to the other CESs.

A.20 hour
B.12 hour
C.24 minute
D.24 hour

单项选择题The Inmarsat SES operator can choose the most suitable CES according to（）.

A.his service and position
B.time and course
C.tide and speed
D.type of his ship

单项选择题The Network Coordination Station for the INMARSAT-A coast stations in the Pacific ocean region is in（）.

A.Yamaguchi, Japan
B.Beijing, China
C.Nakhodka, Russia
D.Perth, Australia

单项选择题The NCC is located in the（）.

A.IMO Headquarters in London
B.Inmarsat Headquarters building in London
C.Western European Maritime Organization
D.International Maritime Safety Committee

单项选择题The GMDSS defines four sea area based on the（）.

A.location and capacity of the facilities located on board ships
B.Position and type of a sincre sintion
C.Capacity and location of shore based communication facilities
D.Position and capacity of mobile communication stations