洞内导线应根据洞口投点向洞内作引申测量，洞口投点应纳入( )内。A.导线点 B.控制网 C.精度误差范围 D.视线范围

作者: rantiku 人气: - 评论: 0

问题洞内导线应根据洞口投点向洞内作引申测量，洞口投点应纳入( )内。

选项 A.导线点 B.控制网 C.精度误差范围 D.视线范围

答案 B

解析洞内导线应根据洞口投点向洞内作引伸测量，洞口投点应纳入控制网内。

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