多项选择题
A.1:2.5万B.1:1万C.1:5000D.1:500
A.300dpiB.400dpiC.500dpiD.600dpi
A.影像判读B.立体观测C.图式规范D.外业调绘与补测
A.0.1mmB.0.15mmC.0.2mmD.0.25mm
微信扫一扫,加关注免费搜题