比例尺分别为1:1000、1:2000、1:000地形图的比例尺精度分别为()。
A:1m,2m,5m
B:0.001m,0.002m,0.005m
C:0.01m,0.02m,0.05m
D:0.1m,0.2m,0.5m
出自:工程测量员