A、changes in seawater salinity
B、glare on clouds on the horizon
C、changes in air temperature
D、icebergs
更多“The proximity of pack ice may be indicated by（）.”相关的问题
A、state of wind，sea，and current，and the proximity of navigational hazards B、maximum attainable speed of your vessel C、temperature D、aids to navigation that are available
A、rising warm air B、proximity to a low pressure area C、inward spiraling circulation D、clear dry weather
A、the raising of the standards of teaching and the reform in curriculum B、the raising of the standards of teaching and learning and the restructuring of the schools C、the raising of the standards of teaching and the improvement of the standards of learning D、None of the above
A、volume of liquid in the tank B、volume of displacement of the vessel C、location of the tank in the vessel D、height of the center of gravity of the vessel
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