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
A、running fix
B、dead-reckoning position
C、fix
D、estimated position
A、A.dead-reckoning position B、B.fix B.estimated position C、C.probable position D、D.running fix