Methods Rapid evaluation method and descriptive study were used to analyze the relations between the purchase-sale system and the rational use of medicine in 3-level medical institutions in western poverty areas.

Since the founding of our People s Republic, a lot of institution has basically changed which has closely related or associated with the land institution, the agricultural tax institution, the purchase and sales system and the household register system has an effect on the land management and exploitation.

Buying and Selling System Structure and Realization Aralysis;

Concept of computer-generated transportation management and distribution system for BaoShen railway;

Comparison with Distribution System of Means of Production between America and Japan;