The Arc de Triomphe is the largest triumphal arch in existence.
举一反三
- The section types of the main arch consist of slab arch bridge,rib arch bridge,double-convex arch bridge,and box arch bridge. A: 正确 B: 错误
- A completely new situation will _______ when the examination system comes into existence.
- arch
- The widespread existence of _______
- The main arch is main bearing structure for arch bridges. A: 正确 B: 错误