A.occasionally
B.accidentally
C.often
D.usually
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A.keep
B.kept
C.are keeping
D.have kept
A.has made
B.make
C.has been made
D.is making
A.When the distress alert is sounded
B.When the emergency equipment is switching on
C.When the general emergency alarm is sounded
D.When the distress broadcast is sounded
A.When
B.Where
C.how
D.that
A.If
B.Whenever
C.Because
D.Where
最新試題
The rescue coordination center may（）on stations which interfere with traffic.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Please use（）for（）.
（）will form the basis for distress alerting and safety calling.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.
We consider（）send a helicopter with medical facilities to the distress area.
The priority of EGC messages is classified by（）.
Ship-to-ship distress alerting should be conducted by（）.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.