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当动水压力GD大于土的浮重度γw\'时，土粒便会产生流砂现象。

A、true

B、false

时间：2021-07-18 19:45 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）道路桥梁工程技术高起专道路施工组织与概预算

答案解析

B
B

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