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單項選擇題

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

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

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單項選擇題
An SES operator can chose the most suitable CESs according to（）.
A.the routing agreement for a particular ocean region
B.The communication service he required
C.the positions of his ship and the CESs
D.B and C
單項選擇題
The NCS of INMARSAT-A system in the AOR-E is in（）.
A.Goonhilly, UK
B.Yamaguchi, Japan
C.Perth, Australia
D.Southbury, USA