From the perspective of the level and structure of economic operation, the three major comparative disadvantages of Guizhou are the low level of urban economy, the underdevelopment of modern services industry and the lack of corporate and product brands.

His comparative thinking mode includes systematic comparison,characteristic comparison,comparison of historical feature,space-and-time comparison,pro-and-con comparison,classification comparison and so on.

His comparative thinking includes class difference comparison, national condition comparison, history comparison, positive and negative comparison, comparison between ourselves and the enemy and so on.

Comparative thinking is a form of thinking which connects things existent oppositeness or relativeness together and makes a comparison between them.

From an angle of empirical analysis,this dissertation quantitatively illustrates the degree of the closeness and complementarity of the trade links between China\'s Xinjiang and Russia by some analytical tools,such as Trade Intensity Index(TII),Revealed Comparative Advantage(RCA) and Trade Complementarity Index(TCI).