A.0.20,0.15
B.0.25,0.15
C.0.15,0.25
D.0.15,0.20
A.0.20,0.15
B.0.25,0.15
C.0.15,0.25
D.0.15,0.20
A.200
B.250
C.300
D.350
A.梁的截面高度较小
B.梁的跨度较小
C.梁的截面高度较大
D.梁承受的荷载较小
A.5-45
B.0-45
C.5-40
D.0-40
A.10mm
B.20mm
C.30mm
D.40mm
A.底部钢筋或设置基础梁
B.底部钢筋或设置圈梁
C.顶部钢筋或设置圈梁
D.顶部钢筋或设置基础梁
A.腹板高度hw≥700mm
B.腹板高度hw≥600mm
C.腹板高度hw≥450mm
D.腹板高度hw≥400mm
A.430
B.650
C.670
D.700
A.一样
B.1.5倍
C.一半
D.两倍