You are docking a vessel．If possible,you should ______．

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• 1The set of the ocean current is caused by ______．

  A.density differences of the water

  B.rotation of the earth

  C.direction of primary circulation of air

  D.all of the above

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• 2Spring tides occur ______．

  A.when the moon is new or full

  B.when the moon and sun have declination of the same name

  C.only when the moon and sun are on the same sides of the earth

  D.at the beginning of spring when the sun is over the equator

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• 3Uncharted lights, fog signals and radar beacon transmissions may be ______ near the station．

  A.encountered

  B.met

  C.contacted

  D.seen

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• 4When a buoy marks a channel bifurcation(分支), the preferred channel is NOT indicated by ______．

  A.the shape of an unlighted buoy

  B.the light color of a lighted buoy

  C.the color of the topmost band

  D.whether the number is odd or even

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• 5The shortest distance between any two points on earth defines a ______．

  A.small circle

  B.great circle

  C.rhumb line

  D.hyperbola

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• 6All the holds to be loaded with grain must be swept ______ commencement of loading．

  A.cleanly／during

  B.clear／meanwhile

  C.clean／between

  D.clean／prior to

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• 7Stop ______ the derrick at once，the gooseneck is bent．

  A.to use

  B.to operate

  C.maneuvering

  D.using

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• 8The actual amount of cargo loaded depends upon ______．

  A.the broken stowage listed

  B.the broken stowage calculated

  C.the broken stowage given

  D.the actual broken stowage

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• 9The Routing System which aimed at reducing the risk of casualties is called as ______．

  A.Traffic Separation Schemes

  B.Recommended tracks

  C.Precautionary areas

  D.Inshore traffic zones

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• 10What kind of conditions would you observe as the eye of a storm passes over your ship's position、

  A.Huge waves approaching from all directions,clearing skies,light winds,and an extremely low barometer

  B.Flat calm seas,heavy rain,light winds,and an extremely low barometer

  C.Flat calm seas,heavy rain,light winds,and high pressure

  D.Huge waves approaching from all directions,clearing skies,light winds,and high pressure

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