A.ship-to-shore
B.shore-to-ship
C.bridge-to-bridge
您可能感興趣的試卷
你可能感興趣的試題
A.some
B.lots of
C.many
D.all
A.impossible
B.possible
C.easy
D.difficult
A.55.5 W
B.180E
C.15.5W
D.64.5E
A.one means, whether satellite or terrestrial techniques
B.two means, whether satellite or terrestrial techniques
C.two separate and independent means, each using different radio communication services
D.two means, such as MF DSC and HF DSC
A.satellite /terrestrial system
B.INMAARSAT/COSPAS-SARSAT
C.SART / EPIRB
D.geostationary/polar-orbiting satellites
最新試題
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
Radio beacon can be activated（）in case of distress.
Ship-to-ship distress alerting should be conducted by（）.
By using（）system a ship can send a distress message and know with certainty it will be received.
All coast radio stations（）DSC installed for VHF and HF.
The rescue coordination center may（）on stations which interfere with traffic.
Radio communication（）for many years and helps to save tens of thousands of lives.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
COSPAS-SARSAT is intended to be used for（）.