单选题 1分

ECDIS will not give an alarm for which of the following case?

  • A.If the ship is going to reach a critical point on the planned route.
  • B.When the speed of a dangerous target exceeds a set limit.
  • C.If the ship’s ETA has changed beyond the set limit.
  • D.If the displacement is changed.

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1 单选题 1分
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  • A. accurate only in the polar regions
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  • A. keeping a close watch and look-out
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