题目建筑钢材单向受拉的屈服点fv与单向受压的屈服点f'y之间满足( )。A. fy>f'yB. fy<f'yC. fy=f'yD. fy=0.58f'y建筑钢材单向受拉的屈服点fv与单向受压的屈服点f'y之间满足( )。A. fy>f'yB. fy<f'yC. fy=f'yD. fy=0.58f'y题目解答答案C. fy=f'y