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1 93. 以全測站經緯儀量測A、B點間斜距,得其距離為536.951m;如測得垂直角為3°00'00",若忽略海平面歸化改正,則AB間水平距離為何?
A 536.215m
B 536.951m
C 531.577m
D 508.849m