单选

The warm front is usually lifted up from the surface by ().

  • A.the cold front
  • B.heavy wind
  • C.high pressure
  • D.hurricane
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The half-breadth plan is ()

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  • D.Usually drawn for the port side only

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The warm front is usually lifted up from the surface by ().

  • A.the cold front
  • B.heavy wind
  • C.high pressure
  • D.hurricane

What is meant by veering the anchor chain ().

  • A.Bringing the anchor to short stay
  • B.Heaving in all the chain
  • C.Locking the windlass to prevent more chain from running out
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I hereby declare that my vessel has a ()15 400 metric tons.

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You are calling another vessel by radiotelephone using the International Code of Signals.He responds with the words Alpha Sierra.This indicates that ().

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The distress message of a ship should include considerable information which might facilitate the rescue.This information should ()

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