洞门端墙的砌筑与墙背回填应()进行。A、先内后外 B、先上后下 C、先下后上 D、两侧同时

作者: rantiku 人气: - 评论: 0
问题 洞门端墙的砌筑与墙背回填应()进行。
选项 A、先内后外 B、先上后下 C、先下后上 D、两侧同时
答案 D
解析 新版教材P157 洞门端墙的砌筑与墙背回填应两侧同时进行,防止对衬砌边墙产生偏压。

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