A.35d(d為鋼筋直徑)長度范圍內(nèi) B.不小于500mm C.35d(d為鋼筋直徑)長度范圍內(nèi),但不小于500mm D.35d(d為鋼筋直徑)長度范圍內(nèi),但不小于350mm
A.98% B.96% C.94% D.93%
A.8% B.6% C.5% D.4%