A.140m B.130m C.120m D.100m
A.150m B.155m C.160m D.165m
A.鋼結(jié)構(gòu) B.型鋼混凝土組合結(jié)構(gòu) C.鋼筋混凝土結(jié)構(gòu) D.混合結(jié)構(gòu)