For self-anchored suspension bridge,the stiffening girder is in compression.
For self-anchored suspension bridge,the stiffening girder is in compression.
For self-anchored suspension bridge,the stiffening girder is in compression. A: 正确 B: 错误
For self-anchored suspension bridge,the stiffening girder is in compression. A: 正确 B: 错误
1