单项选择题
In Inmarsat-A, “Priority 3” means（）communication.
A.routine
B.distress
C.urgency
D.safety
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相关考题
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单项选择题
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 -
单项选择题
After successful commissioning, the（）will permit the SES access to system.
A.INMARSAT
B.IMO
C.MSC
D.CES -
单项选择题
During a（）period, as a newly commissioned SES, your IMN will be past to the other CESs.
A.20 hour
B.12 hour
C.24 minute
D.24 hour
