单选题:Plans for this development have been presented to people who 题目分类:中级 题目类型:单选题 查看权限:VIP 题目内容: Plans for this development have been presented to people who live in the area for comment and approval. 参考答案: 答案解析:
[背景材料]某公路山岭隧道,长度为2000m;穿越的岩层主要是坚硬岩,岩体较完整,块状或厚层状结构;采用新奥法钻爆施工。 [背景材料]某公路山岭隧道,长度为2000m;穿越的岩层主要是坚硬岩,岩体较完整,块状或厚层状结构;采用新奥法钻爆施工。两洞121处由于岩层较破碎,设有明洞,进 分类:中级 题型:单选题 查看答案