Research on Marx's theory of social development synergy 并列题名:Research on Marx's theory of social development synergy Research on Marxist social development theory Research on Marx's theory of social existence Research on Marx's theory of social progress 并列题名:Research on Marxist social development theory Research on rural economic and social development in China Researches on Giddens' social development theory Research on Marx's theory of spiritual production and its value Research on the safety of spatial development in big cities