![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
一级导线测角应满足相应的精度要求,测角中误差应控制在()以下
A.±10"
B.±2"
C.±l"
D.±5"
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
D、±5"
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.±10"
B.±2"
C.±l"
D.±5"
D、±5"
导线边长应根据不同比例尺的测图要求,一般选择在()米之间,导线边长最大大致相等,否则,测角精度会受到很大影响。
A.50~300
B.20~100
C.100~300
D.80~200
A.001
B.002
C.003
D.004
E.005