【单选题】【消耗次数：1】
土类为单一土质时，普通开挖深度大于(）m,坚土开挖深度大于（）m时，允许放坡。
①
1.2;1.6
②
1.1;1.5
③
1.2;1.7
④
1.3;1.7
参考答案：
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相关题目
【单选题】
关于土方开挖放坡下列说法正确的是()
①
土类为单一土质时，普通土开挖深度大于1.2m时，允许放坡。
②
土类为单一土质时，坚土开挖深度大于1.5m时，允许放坡。
③
土类为混合土质时，开挖深度小于1.5m，允许放坡。
④
土类为混合土质时，开挖深度大于1.7m时，允许放坡。
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