单项选择题
依据T /CECs 02-2020,回弹两测点的间距不宜小于(),测点距构件边缘或外露钢筋、铁件的距离不应小于()
A.20mm,30mm
B.20mm,50mm
C.30mm,50mm
D.30mm,30mm
点击查看答案&解析
相关考题

单项选择题
A.20mm,30mm
B.20mm,50mm
C.30mm,50mm
D.30mm,30mm
微信扫一扫,加关注免费搜题