(单项选择题)(易)(距离测量与直线定向)( ) (图片)
A.70°30′(487.4,397.3)
B.10°10′(397.3,487.4)
C.70°30′(397.3,487.4)
D.190°10′(487.4,397.3)
正确答案是A
(单项选择题)(易)(距离测量与直线定向)( ) (图片)
A.70°30′(487.4,397.3)
B.10°10′(397.3,487.4)
C.70°30′(397.3,487.4)
D.190°10′(487.4,397.3)
正确答案是A