单选题A position that is obtained by using two or more intersecting lines of position taken at nearly the same time，is a(n) （）.AfixBrunning fixCestimated positionDdead-reckoning position
单选题
A position that is obtained by using two or more intersecting lines of position taken at nearly the same time，is a(n) （）.
A
fix
B
running fix
C
estimated position
D
dead-reckoning position
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