The paper introduces the "parallel "relation in the geometry defined by the axiom system of projective geometry,then changes accidence axiom I8 for "parallel axiom",and obtains a new geometry-affine geometry.

The article proves sine rule and that vertical line of a line crosses its slant lines are both equivalent for the parallel axiom (Euclid) on the combined axiom; the sequence axiom; the repeatability axiom; the continuity axiom (the axiom system of Hilbert), so they are equivalent for each other .

The equity theory cognition in business management;

A Study on the Theories and Applications of Equity Theory;

Fair Theory and Staff Management in Higher Educational Institutions;

Adams fair theory ,then the writer proposes the decision standard for the manager s distribution.

The paper analyzes the features of supply chain management and its main problems,gives out profit distributed mechanism based on fair theory and the method of how to fulfill it.