• 2022-06-07
    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