A.0.1%≤體積配筋率≤0.8%B.0.4%≤體積配筋率≤0.8%C.0.5%≤體積配筋率≤1%D.0.1%≤體積配筋率≤1%
A.梯形截面柱B.矩形截面墻C.正方形截面柱D.正方形截面墻
A.三B.五C.七D.九