单项选择题

A.radio direction-finding apparatusB.DSCC.NAVTEXD.EPIRB……

When engaged on international voyages, ships of 1600 tons gross tonnage and upwards shall be fitted with a（）.

A.radio direction-finding apparatus
B.DSC
C.NAVTEX
D.EPIRB

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热门试题

单项选择题The maritime access code of telephone mode in INMARSAT-A terminal for the AOR(W) is（）.

A.871
B.872
C.873
D.874

单项选择题In Inmarsat-A, “Priority 0” means（）communication.

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

单项选择题The maritime access code for the IOR is（）in INMARSAT-A Telex Service.

A.581
B.582
C.583
D.584

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