A.400㎡,100㎡ B.500㎡,50㎡ C.100㎡,200㎡ D.300㎡,100㎡
A.4.0m;3.5m B.5.0m;3.5m C.4.5m;4.0m D.5.0m;3.0m
A.4.5 B.5.0 C.5.5 D.6.0