单选题A position obtained by crossing lines of position taken at different times and advanced to a common time is a(n)（）.Arunning fixBdead-reckoning positionCfixDestimated position
单选题
A position obtained by crossing lines of position taken at different times and advanced to a common time is a(n)（）.
A
running fix
B
dead-reckoning position
C
fix
D
estimated position
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