A.1:300~1:500 B.1:200~1:500 C.1:300~1:600 D.1:200~1:400
A.施工進(jìn)度 B.施工計(jì)劃 C.施工過程 D.施工成本
A.10×15 B.15×15 C.15×20 D.20×20