A.range of the tide
B.plane of the tide
C.stand of the tide
D.reversing of the tide
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A.tide is falling from high water to low water
B.tide is rising from low water to high water
C.tide is reaching to a highest level
D.tide is reaching to a lowest level
A.depth of water at a specific time due to tidal effect
B.difference between the depth of the water and the area's tidal datum
C.difference between the depth of the water and the high water tidal level
D.difference between the depth of the water at high tide and the depth of the water at low tide
A. the angle between the horizontal and the line of sight to the visible horizon
B. index error
C. parallax
D. terrestrial refraction
A.Mean low water
B.Mean high water
C.Average water level
D.Geographical sea level
A.the time of day
B.the seasons
C.geography
D.All of the above
最新試題
Lateral movement of the vessel to leeward of its course defines （）.
For full information regarding the current circulation of the Indian Ocean,（） Sailing Direction,Current Atlas,etc.
A vessel not to impede the passage of another vessel is not relieved （） taking collision-avoiding action.
The distance between any two meridians measured along a parallel of latitude （）.
Above-normal tides near the center of a hurricane maybe caused by the （）.
A vessel is entering port A for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do（）.
The distance between the surface of the water and the tidal datum is the （）.
Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．
Areas enclosed by a long and short dashed magenta line indicate （）.
The height of tide is the （）.