單項(xiàng)選擇題在地形圖上,量得A、B兩點(diǎn)的坐標(biāo)分別為xA=2910.14m,yA=3133.78m,xB=3110.14m,yB=2933.78m,則AB的坐標(biāo)方位角為()

A.45°
B.135°
C.225°
D.315°


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