What is the tide（）.

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• A swift current occurring in a narrow passage connecting two large bodies of water which is produced by the continuously changing difference in height of tide at the two ends of the passage is called a(n)（）.

  A . hydraulic current B . rectilinear current C . rotary current D . harmonic current

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• As soon as the ship is berthed，you should lower the gangway，stretch a net（）it，and adjust it to the rise and fall of the tides so that personnel may embark or disembark in safety．

  A . over B . besides C . near D . underneath

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• Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）

  A . Crossing the spring lines B . Slacking all forward running lines while keeping all after running lines taut C . Doubling up on spring or breast lines D . Slacking bow and stern line

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• A swift current occurring in a narrow passage connecting two large bodies of water，which is produced by the continuously changing difference in height of tide at the two ends of the passage，is called a（）.

  A . hydraulic current B . rectilinear current C . rotary current D . harmonic current

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• In some parts of the world there is often a slight fall in tide during the middle of the high water period. The effect is to create a longer period of stand at higher water. This special feature is called a(n)（）.

  A . apogean tide B . double high water C . perigean tide D . bore

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• What is the cause of the error？（）

  A .  Missing control VLAN in VSM configuration B .  Missing packet VLAN in VSM configuration C .  VSM has no network connection to vCenter D .  VSM extension key is not installed on vCenter E .  vCenter extension key is not installed on VSM

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• The datum from which the predicted heights of tides are reckoned in the tide tables is（）.

  A . mean low water B . the same as that used for the charts of the locality C . the highest possible level D . given in table three of the tide table

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• The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a ship is the（）.

  A . air gap B . freeboard C . penetration D . water depth

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• The tide is（）.

  A . black B . setting C . being D . having

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• The interval of the average elapsed time from the meridian transit of the moon until the next high tide is called the（）.

  A . harmonic constant B . establishment of the port C . half-tide level D . tide cycle

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• The difference between the heights of low and high tide is the（）.

  A . period B . range C . distance D . depth

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• The average height of the surface of the sea for all stages of the tide over a 19 year period is called（）.

  A . mean high water B . mean low water C . half-tide level D . mean sea level

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• When daylight savings time is kept，the time of tide and current calculations must be adjusted.One way of doing this is to（）.

  A . Add one hour to the times listed under the reference stations B . Subtract one hour from the time differences listed for the subordinate stations C . Apply no correction as the times in the reference stations are adjusted for daylight savings time D . Add 15° to the standard meridian when calculating the time difference

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• 133. Stand of the tide is that time when _______ .

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• What is the motto is WADA?

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• 3.What is the major problem the young generation is facing?

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• 262. The meaning of ebb tide is that ______.

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• 129. The average height of the surface of the sea for all stages of the tide over a 19 year period is called _____.

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• 96. The datum from which the predicted heights of tides are reckoned in the tide tables is _____.

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• 11. To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is _____.

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