What are the two types of bridges in ancient China according to their structural forms? A: Flat bridges and covered bridges B: Beam bridges and covered bridges C: Arch Bridge and Flat Bridge D: Beam bridges and arch bridges
What are the two types of bridges in ancient China according to their structural forms? A: Flat bridges and covered bridges B: Beam bridges and covered bridges C: Arch Bridge and Flat Bridge D: Beam bridges and arch bridges
Which of the following bridges are suspension bridges?
Which of the following bridges are suspension bridges?
This is one of the longest bridges that ______ on this river.
This is one of the longest bridges that ______ on this river.
The main arch is main bearing structure for arch bridges. A: 正确 B: 错误
The main arch is main bearing structure for arch bridges. A: 正确 B: 错误
Possibly the greatest advance in ____materials<br/>came with the invention of a cheap way to make steel. A: bridge-building B: building of bridges C: building a bridge D: bridges are built
Possibly the greatest advance in ____materials<br/>came with the invention of a cheap way to make steel. A: bridge-building B: building of bridges C: building a bridge D: bridges are built
16. W______ bridges are not stronger than stone ones.
16. W______ bridges are not stronger than stone ones.
____ building the bridges, the areas on both sides of the river developed rapidly.
____ building the bridges, the areas on both sides of the river developed rapidly.
Which of the following statements are true regarding bridges and switches? (Choose 3.)
Which of the following statements are true regarding bridges and switches? (Choose 3.)
Which of the following bridges do not cross the East River in New York?
Which of the following bridges do not cross the East River in New York?
The -ES ending in the following four words, dishes， watches， glasses and bridges can be pronounced as:
The -ES ending in the following four words, dishes， watches， glasses and bridges can be pronounced as: