两点坐标增量为△xab=+42.567m和△yab=-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
出自:基础知识