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

单项选择题There are（）NCSs in total, one in each ocean region, the AOR (E and W), IOR and POR.

A.3
B.2
C.1
D.4

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

单项选择题The position of the POR satellite in the Inmarsat system is（）above the equator.

A.55.5W
B.64.5E
C.15.5W
D.178E

单项选择题There is actually an overlapped area of（）ocean regions somewhere in Western European waters.

A.two
B.three
C.more than two
D.more than three