两点坐标增量为ΔxAB=+ 42. 567m和ΔyAB=-35. 427m,则方位角aAB和距离DAB分别为: A. -39°46'10",55. ...

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问题 两点坐标增量为ΔxAB=+ 42. 567m和ΔyAB=-35. 427m,则方位角aAB和距离DAB分别为:
A. -39°46'10",55. 381m B. 39°46'10",55. 381m
C. 320°13'50",55. 381m D. 140°13'50",55. 381m

选项

答案C

解析
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