The recent progress in recognition of function of vitamin A and in studies of related reac-tions: radical reaction, enzymatic reaction, electron transfer reaction and photochemical reaction,as well as in microenvironmental effects were reviewed in this paper.

This article expounds the determination of the general goals of enterprises through briefly analyzing the main factors of macro and micro environments affecting the strategic management of enterprises, and thus provides basic data for enterprises to analyze and select strategies.

The macro environment of newspaper marketing is composed of a country s or regional different capability factors in micro environment of newspaper marketing and newspaper enterprises can form the relationship of cooperation, competition, service and supervision.

On the advantages and disadvantages of Wuxi XIN Feng condenser plant and the opportunities and menaces of the enterprise in the macroenvironment and microenvironment;

Analysis and Research on Microenvironment System of Enterprise;

The microenvironment of family is an important place to conduct ideological and political education.

The research teaching has its unique practice environment in universities in China,the macroscopic environment and microscopic environment.

In this foundation,the author proposed several norms in practice to improves the microscopic environment of city .

In this paper,I analysis the macro-environment and the micro-environment in which the logistics enterprises are.