题目内容：
基坑开挖采用挡土板对坑壁进行加固后才能进行开挖是指（ ）。
参考答案：
答案解析：
单选题：基坑开挖采用挡土板对坑壁进行加固后才能进行开挖是指（ ）。
- 题目分类：公路造价技术与计量
- 题目类型：单选题
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