Systematic study of family status action from the perspective of the civil code 并列题名：Systematic study of family status action from the perspective of the civil code Research on ship mortgage from the perspective of civil code the state regime construction from the perspective of the village The study of system civilization from the perspective of political science Case study and application of the succession of the civil code Juridical acts of identity from the perspective of civil code a study of facilitation mechanisms from the perspective of transaction costs philosophic study on living state from the perspective of meaning 并列题名：The study of system civilization from the perspective of political science