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横坡陡于( )时,原地面应挖台阶,台阶宽不小于1m。 [ ]

A、1:10;

B、1:10~1:5;

C、1:5;

D、1: 2.5

时间：2021-07-17 23:38 关键词：工程管理专升本建筑施工技术与组织 2019级毕业清考 2019级毕业清考（考试分）工程造价建筑施工技术 2019级第三学期期末考试

答案解析

C

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