Study on the evolution of rural land system in contemporary China A study on the construction of cultural mentality in contemporary China Study of the evolution of urban size system in China Study on codifaction of civil code in contemporary China a study on disputes resolution in urban communities in contemporary China Study on the evolution of expressionist oil painting techniques in contemporary China Brokers and the evolution of trading system in modern China Study of reconstruction of rural economic system in central China Study on the dominance of socialist ideology in contemporary China 并列题名：Study on the evolution of expressionist oil painting techniques in contemporary China