A.taken
B.take
C.took
D.taked
您可能感興趣的試卷
你可能感興趣的試題
A.someone else will take his place
B.the captain will take charge of his work
C.nobody will be capable of doing his work
D.anyone else will use the radio equipment
A.receive shore-to-ship distress alerting
B.transmit ship-to-shore distress alerting
C.receive message for public correspondence
D.transmit and receive locating signals
A.an EGC receiver only
B.a satellite communication system
C.a HF radio system
D.a VHF with DSC system
A.English/all distress communications
B.Chinese/some distress calls
C.the language decided by Administration/all distress calls
D.Japanese/some distress alerts
A.countries
B.states
C.names
D.groups
最新試題
Radio communication（）for many years and helps to save tens of thousands of lives.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
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.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
Radio beacon can be activated（）in case of distress.
The advantage of geostationary satellites is（）.
The priority of EGC messages is classified by（）.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
SOLAS ships shall be equipped with（）.
Before GMDSS, if the radio officer on board is serious ill,（）.