试题详情

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

B39°46"10",55. 381m

C320°13"50",55. 381m

D140°13"50",55. 381m