【单选题】【消耗次数：1】
建筑室内排水管道常用的管材为
①
UPVC
②
PVC
③
PP-R
④
PEX
参考答案：
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相关题目
【单选题】
给排水管道安装工程量计算主要采用消耗量定额第八册《第八册给排水、采暖、燃气工程》第四章给排水管道安装,适用于室内外生活用给水、排水、雨水管道安装，共（ ）个子目。
①
200
②
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