Study of the death penalty system in ancient China 并列题名：Study of the death penalty system in ancient China Study on the urban governance system in ancient China Study of bureaucratic political system in ancient China 并列题名：Study of bureaucratic political system in ancient China Study on the political communication system of ancient China study on the system of concealment in ancient China Brief history of taxes and corvee system in ancient China Issues on the death penalty of violent crimes 并列题名：Study on the political communication system of ancient China