【单选题】【消耗次数：1】
楼（地）面砂浆防水（防潮）楼（地）面防水反边高度≤()mm算作地面防水，反边高度()mm按墙面防水计算
①
300300
②
200200
③
250250
④
350350
参考答案：
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相关题目
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下列关于防水砂浆防水层施工的说法中，正确的是（）。
①
砂浆防水工程是利用一定配合比的水泥浆和水泥砂浆（称防水砂浆）分层分次施工，相互交替抹压密实的封闭防水整体
②
防水砂浆防水层的背水面基层的防水层采用五层做法，迎水面基层的防水层采用四层做法
③
防水层每层应连续施工，素灰层与砂浆层可不在同一天施工完毕
④
揉浆是使水泥砂浆素灰相互渗透结合牢固，既保护素灰层又起到防水作用，当揉浆难时，可加水稀释
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