题目内容:
选用屋面防水等级为Ⅰ级的卷材时,合成高分子卷材和高聚物改性沥青卷材的每道厚度分别不应小于多少?( )
A.1.5mm,4mm
B.1.5mm,3mm
C.1.2mm,4mm
D.1.2mm,3mm
参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析:
选用屋面防水等级为Ⅰ级的卷材时,合成高分子卷材和高聚物改性沥青卷材的每道厚度分别不应小于多少?( )
A.1.5mm,4mm
B.1.5mm,3mm
C.1.2mm,4mm
D.1.2mm,3mm