《大汉天子》是近几年的一部热播电视剧， “大汉天子”为推进我国大一统格局做出了重要贡献。在加强中央对地方的控制方面，他采取的最重要一项措施是

A．设司隶校尉

B．实行“推恩令”

C．北击匈奴

D．“罢黜百家，独尊儒术”

第二节短文改错（共10小题，每小题1.5分，满分15分）

For different reasons, people are pouring into big cities, which cause much more trouble than expected. As the growth of the population, city problems are grown day by day. To begin with, big cities are becoming so crowed that it makes find jobs very difficult. As a result, people without jobs are likely to become danger to our society. In additional, the environment is getting worse and worse, and there is pollution and traffic problems as well as. We can’t choose but face with them. In my opinion, big cities need to control the population to help develop itself for the future. In terms of improving the environment, every citizen should be called on to contribute to protect the environment.