A.only SAR authorities on land
B.all ships in a very large sea area
C.the nearest coast stations and port radios
D.the SAR authorities ashore as well as ships in the vicinity of the casualty
您可能感興趣的試卷
你可能感興趣的試題
A.countries
B.states
C.names
D.groups
A.one
B.two
C.three
D.four
A.a dummy antenna
B.a supporting facilities
C.a back-up equipment
D.an antenna
A.one-way
B.two-way
C.double-effect
D.one-effect
A.distress
B.urgent
C.safety
D.general
最新試題
Ship-to-ship distress alerting should be conducted 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.
The vessel has stayed in port for seven days because she needs（）.
On-scene communications will normally take place between（）.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
SOLAS ships shall be equipped with（）.
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.
The rescue coordination center may（）on stations which interfere with traffic.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
Before GMDSS, if the radio officer on board is serious ill,（）.