单选题A fairly accurate estimation of a ship’s position can be calculated by a technique known as（）.Adead reckoningBpilotageCgreat circle sailingDgeographic navigation
单选题
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
参考解析
解析：
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