A.25% B.35% C.45% D.55%
A.不應(yīng)大于50 B.不應(yīng)小于60 C.應(yīng)大于70 D.應(yīng)小于80
A.箍筋 B.橫向受壓鋼筋 C.構(gòu)造鋼筋 D.縱向受拉鋼筋