A fairly accurate estimation of a ship’s position can be calculated by a technique known as（）.<br>A:dead reckoning<br>B:pilotage<br>C:great circle sailing<br>D:geographic navigation

A fairly accurate estimation of a ship’s position can be calculated by a technique known as（）.
A:dead reckoning
B:pilotage
C:great circle sailing
D:geographic navigation

出自：海船船员证

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