单项选择题
A.退光漆B.硝基漆C.醇酸漆D.聚酯漆
A.100:3:3B.100:5:2.5C.100:4:2.5D.100:2:1
A.50斤生石灰块50斤白面B.40斤生石灰块50斤白面C.25斤生石灰块50斤白面D.15斤生石灰块50斤白面