A.The transmission is aborted and an alarm sounds to indicate this data must be provided by the operator
B.The transmission is not initiated and "ERROR" is indicated on the display readout
C.The transmission will be made with "default" information provided automatically
D.The receiving station will poll the DSC unit of the vessel in distress to download the necessary information
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A.or
B.and
C.but
D.unless
A.identify
B.identifier
C.identity
D.identification
A.seen
B.sighted
C.watched
D.located
A.At least two years after the last entry
B.At least one year after the last entry
C.At least 90 days after the last entry
D.At least 30 days after the last entry
A.6 months
B.1 year
C.2 years
D.3 years
最新試題
Please use（）for（）.
Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.
By using（）system a ship can send a distress message and know with certainty it will be received.
The vessel has stayed in port for seven days because she needs（）.
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.
Radio communication（）for many years and helps to save tens of thousands of lives.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.