A.9.33 B.10.8 C.10.4 D.無(wú)法計(jì)算
A.8.33 B.8.61 C.8.96 D.無(wú)法計(jì)算
A.4.8m,58.8m B.2.4m,0m C.9.6m,4.8m D.4.8m,2.4