In order to _____ the development of the west of our country, many special policies have been ma
A.
13. In order to _____ the development of the west of our country, many special policies have been made, such as encouraging people to go to work in the west. A.accelerate
【单选题】Overhead railway, (whose) tracks (are elevated out of) the way of surface traffic, (might have been) (one possible solution to) heavy traffic in big cities.