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navigational aids （）
- A、助航设备
- B、航行警告
- C、主罗经
- D、磁罗经
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Channel 13（156．65 MHz），the designated bridge-to-bridge channel，may NOT be used to ______．A.exchange navigational information between vesselsB.exchange navigational information between a vessel and a shore stationC.conduct necessary testsD.exchange operating schedules with company dispatcher
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单选题No navigational aids are shown and chart is not kept（）for alterations in depths inside the pecked lines joining Hurst pt. to Warden pt.A
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information on tides，currents and characteristics of the sea
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appreciatedC
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The Spread of HIV—Will We Ever Cure AIDS?B
The Worse Situation of AIDS—Will AIDS Ruin the Human Race?C
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单选题Duty officer and （）keep navigational watches on the bridge at sea.A
seamanB
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OS
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单选题There are many navigational aids（）.A
in chief engineer's roomB
in chief officer's roomC
on the bridgeD
on deck
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单选题Channel 13 (156.65 MHz)，the designated bridge-to-bridge channel，may NOT be used to（）.A
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exchange navigational information between a vessel and a shore stationC
conduct necessary testsD
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单选题Which of the following shall not the officers in charge of the navigational watch do?（）A
continue to be responsible for the safe navigation of the shipB
Leave the bridgeC
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Use any available navigational aids necessary to ensure that the ship follows the planned course
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单选题There are some navigational instruments（）.A
in bridgeB
on the deckC
in the radio roomD
on the hold
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单选题On navigational aids，what does the light characteristic Fl(2+1) mean?（）A
A flashing light combined with a fixed light of greater brightnessB
Light flashes combined in groups，with a different number of flashes in each groupC
A light showing groups of two or more flashes at regular intervalsD
A fixed light varied at regular intervals by groups of two or more flashes of greater brightness
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单选题Periodic publications notifying changes in，or additions to，previously published navigational data are（）.A
SupplementsB
Annual SummaryC
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单选题0ur ship（）with many modern navigational instruments.A
equippedB
is equippedC
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has equipped
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单选题No navigational aids are shown and chart is not kept corrected for alterations in depths inside the pecked lines. For more detailed information, the larger scale charts must be（）.A
boughtB
analyzedC
consultedD
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all information contained on the barge's Certificate of InspectionB
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all navigational aids to be usedD
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