A.assist
B.send a rescue vessel
C.search the distress area
D.reach the distress position at once
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A.alternation
B.alternate
C.alter
D.alternative
A.all ships in a large sea area
B.only the sea authorities ashore
C.the SAR units ashore and at sea
D.the port radios and the coast stations
A.some
B.lots of
C.many
D.all
A.impossible
B.possible
C.easy
D.difficult
A.climate
B.sunshine
C.human beings
D.both a and b
最新試題
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
The rescue coordination center may（）on stations which interfere with traffic.
The vessel has stayed in port for seven days because she needs（）.
Before GMDSS, if the radio officer on board is serious ill,（）.
What following is not among the function of SOLAS ships?（）
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
Radio beacon can be activated（）in case of distress.
On-scene communications will normally take place between（）.