A.1995
B.1998
C.1999
D.2000
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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
A.55.5 W
B.180E
C.15.5W
D.64.5E
最新試題
The priority of EGC messages is classified by（）.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
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.
By using（）system a ship can send a distress message and know with certainty it will be received.
What following is not among the function of SOLAS ships?（）
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
We consider（）send a helicopter with medical facilities to the distress area.
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.