真空预压加固地基时,膜下真空度应稳定在()kPa以上,以保证加固效果。A:60B:70C:85D:90

作者: rantiku 人气: - 评论: 0
问题 真空预压加固地基时,膜下真空度应稳定在()kPa以上,以保证加固效果。
选项 A:60 B:70 C:85 D:90
答案 D
解析

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