The maritime access code for the IOR is（）in INMARSAT-A ……

单项选择题In Inmarsat-A, “Priority 3” means（）communication.

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

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

单项选择题The Inmarsat SES operator can choose the most suitable CES according to（）.

A.his service and position
B.time and course
C.tide and speed
D.type of his ship