The height of eye correction is smaller than geometrical dip because of ______.A.the angle between the horizontal and the line of sight to the visible horizonB.index errorC.parallaxD.terrestrial refraction
The height of eye correction is smaller than geometrical dip because of ______.
A.the angle between the horizontal and the line of sight to the visible horizon
B.index error
C.parallax
D.terrestrial refraction
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