"The General History of China" contains "Qin Shihuang's five tours", aiming at "changing the first place, being far (near) from the same degree (statutes)", and promulgating various unified systems an

"The General History of China" contains "Qin Shihuang's five tours", aiming at "changing the first place, being far (near) from the same degree (statutes)", and promulgating various unified systems and regulations. C

Test analysis: The content of the material reflects a series of measures taken by Qin Shihuang after the reunification of China. Item A is irrelevant, and the issue of reunification does not involve the supreme authority of the emperor. Item b is inaccurate, which is the content of "one continuous strain", not the purpose. Item D is not comprehensive, it is only part of the purpose of "doing the same thing".