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
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相关考题
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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
