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單項選擇題

The NCS of INMARSAT-A system in the IOR is in（）.

A.Goonhilly, UK
B.Yamaguchi, Japan
C.Perth, Australia
D.Southbury, USA

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單項選擇題

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 sincere sintion
C.Capacity and location of shore based communication facilities
D.Position and capacity of mobile communication stations

單項選擇題

The position if the IOR satellite in the INMARSAT system is（）above the equator.

A.64.5E
B.178E
C.15.5W
D.54W