A.enter the system/ contact an RCC
B.access to INMARSAT/establish contact with a CES
C.have absolutely priority to enter the system/make contact with a CES
D.enter the system gradually/wait for rescue
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A.1995
B.1998
C.1999
D.2000
A.they all have different limitations with respect to coverage
B.they all have different limitations in the technology they use
C.different systems apply to different ships
D.all of above
A.ship-to-shore
B.shore-to-ship
C.bridge-to-bridge
A.some
B.lots of
C.many
D.all
A.impossible
B.possible
C.easy
D.difficult
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Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
Radio beacon can be activated（）in case of distress.
At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
All coast radio stations（）DSC installed for VHF and HF.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
The advantage of geostationary satellites is（）.
Before GMDSS, if the radio officer on board is serious ill,（）.
On-scene communications will normally take place between（）.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
The rescue coordination center may（）on stations which interfere with traffic.