During daylight savings time the meridian used for determining the time is located farther______．

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• 1The shoreline shown on nautical charts of areas affected by large tidal fluctuations is usually the line of mean ______．

  A.lower low water

  B.low water

  C.tide level

  D.high water

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• 2In revised editions of Admiralty charts the ______ are corrected first．

  A.smaller scales

  B.larger scales

  C.smaller scales and larger scales

  D.moderate scales

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• 3Several shoals ______ reported to exist in the area south-west of the Brothers．

  A.have

  B.have been

  C.has

  D.has been

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• 4The lighthouse if ______ at night may be in trouble．

  A.invisible

  B.it is invisible

  C.isn't visible

  D.unvisible

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• 5Many of the lights on this coast are placed so high as to be frequently obscured by ______．

  A.power

  B.tower

  C.cover

  D.low clouds

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• 6Attention is ______ the advice on the use of charts in The Mariner's Handbook Chapter 3，Section 1．

  A.fixed to

  B.needed for

  C.pushed to

  D.drawn to

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• 7Charted depths ______ by 2 meters due to state of the winds．

  A.is decreased

  B.decreased

  C.decreases

  D.are decreased

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• 8______ the abstracts of deck logbook covering the said accident．

  A.Attached herewith are

  B.Attached is herewith

  C.Attached are hereby

  D.Hereby are attached

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• 9Every entry required to be made in the Official Logbook shall be signed by the ______．

  A.Mate on watch

  B.Master and Chief Mate or other member of the crew

  C.Master only

  D.Purser，one of the Mates，and some other member of the crew

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• 10Logbooks are used to record the events occurring when ______．

  A.the ship is in a harbor

  B.the ship is at anchorage

  C.the ship is underway

  D.all of the above

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