A、A.only automatically
B、B.only manually
C、C.both automatically and manually
D、D.only by remote control
更多“Radio beacon can be activated（）in case of distress.”相关的问题
A、can be overcome by using traditional techniques B、can not be overcome by satellite system C、can be overcome by satellite and digital techniques D、can not be tackled by any modern system
A、can be overcome by using traditional techniques B、cannot be overcome by satellite system C、can be overcome by satellite and digital techniques D、cannot be tackled by any modern system
A、Immediately B、After one hour C、Only when another vessel is in sight D、Only after sunset
A、Admiralty Chart B、Admiralty Light list C、Admiralty List of Radio Signals D、Admiralty Notices to Mariners
A、One approved Category 1 EPIRB B、Three approved Category 1 EPIRBs C、One approved Class B EPIRB D、Two approved Class B EPIRBs
A、in an inside passageway B、in an approved bracket C、so that it is accessible from the bridge of the vessel D、so that it will float free if the vessel sinks
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