单项选择题
水泥砂浆的拌合物密度不宜小于()kg/3m,水泥混合砂浆拌合物密度不宜小于()kg/m3
A.1900,1800
B.1800,1800
C.1900,1900
D.1850,1850
点击查看答案&解析

单项选择题
A.1900,1800
B.1800,1800
C.1900,1900
D.1850,1850
微信扫一扫,加关注免费搜题