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
最新試題
Please use（）for（）.
（）will form the basis for distress alerting and safety calling.
All coast radio stations（）DSC installed for VHF and HF.
The priority of EGC messages is classified by（）.
Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.
COSPAS-SARSAT is intended to be used for（）.
The vessel has stayed in port for seven days because she needs（）.
The rescue coordination center may（）on stations which interfere with traffic.
Before GMDSS, if the radio officer on board is serious ill,（）.
Radio communication（）for many years and helps to save tens of thousands of lives.