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
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A.When
B.Where
C.how
D.that
A.If
B.Whenever
C.Because
D.Where
A.transmit
B.to transmitting
C.transmitting
D.in transmitting
A.strike
B.strikes
C.are striking
D.struck
A.Avoiding
B.To be avoided
C.Avoided
D.To avoid
最新試題
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.
The priority of EGC messages is classified by（）.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
The vessel has stayed in port for seven days because she needs（）.
Please use（）for（）.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Radio beacon can be activated（）in case of distress.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）