A、A.The search target is sighted and then lost
B、B.More than one vessel is available for a search
C、C.The search object is a target that will be readily detected by radar
D、D.An aircraft is available to assist a surface vessel
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A、Whenever its serviceability is in doubt B、In accordance with the manufacturer's recommendation C、At least once a month D、All of the above
A、cool the bulkheads around the fire B、remove combustibles from direct exposure C、close all openings to the area D、shut off all electric power
A、cool the bulkheads around the fire B、remove combustibles from direct exposure C、close all openings to the area D、shut off all electric power
A、You should perform a log switch B、You should make a backup of the database C、You should switch the database to the NONARCHIVELOG mode D、You should shut down the database instance and perform a complete database recovery
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A、A.conductivity higher than a normal conductor B、B.conductivity higher than a normal insulator C、C.high conductivity at low temperatures D、D.low conductivity at high temperatures
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