單項選擇題

In Inmarsat-A, “Priority 3” means（）communication.

A.routine
B.distress
C.urgency
D.safety

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單項選擇題

Who has permit the SES enter the system after successful commissioning?（）

A.Network
B.The CES preferred by the applicant
C.INMARSAT
D.The SES itself

單項選擇題

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

A.INMARSAT
B.IMO
C.MSC
D.CES