A.大于10mm B.小于10mm C.大于20mm D.小于20mm
A.0.8,0.9 B.0.85,1.1 C.0.8,1.1 D.0.85,0.9
A.干鋪1㎡卷材,經(jīng)3~4h后看底部有無水印 B.測量找平層含水率 C.鋪設吸水性好的紙材,1h后查看紙材吸水程度 D.干鋪10㎡卷材,經(jīng)0.5~1h后看底部有無水印