BRT, which is short for Bus Rapid Transit, is c 小题1:“the underground system on the ground”. It has been in s 小题2:since October 1st , 2012 in Lian Yungang. In the p__小题3:__, the roads in the city were so crowded（拥挤的）that most buses went slowly. Because of this, the city government decided to build BRT. Now, people can go to work by it more e小题4:than before. And if you have a student card, you can have a discount on the t    小题5:.

中 * * 党90年来的伟大历程向世人昭示：没有 * * 党，就没有新中国；只有 * * 党才能领导人民实现独立、解放、幸福和富强。我国的国家性质是______________的社会主义国家。[ ]

①工人阶级领导的

②中 * * 党领导的

③工农联盟为基础

④人民民主专政

A．①②④

B．①③④

C．②③④

D．①②③④