which type of bridge does Zhao Zhou bridge in Hebei ProvienceChinabelong to?
A. Suspension bridge
B. Gable bridge
C. Arch bridge
D. Cable-stayed bridge
Because tensile strength is not necessarily required for arch construction, ( )bridges can be made of bricks or stone block.
A. Suspension bridge
B. Gable bridge
C. Arch bridge
D. Cable-stayed bridge
The substructure of bridge contains ()、()、()、()