Natural selection and struggle for existence is the primary drive for biological evolution.

Competitive mechanism of non-predator-prey metapopulation system based on competition and dispersal ability.;

Finally, the authors gave four countermeasures on it, such as introducing competitive mechanism, transforming government functions and so on.

This paper analyzes on the reasons why the development of the libraries in the distressed areas is retarded,and connecting with the developing situation of the libraries in the distressed areas,puts forward some suggestions for the reform from three aspects of improving the quality of the librarians,introducing the competitive mechanism,and innovating the management platform.

This paper discussed the reform course and pointed out that we must develop the medical undertakings of our courtry by recommending in competition system and beginning all kinds of reform.

Starting from the development and cultivation of the talents, competition system and motivation system, this paper probes into the construction of talent environment.

Such competition system not only can greatly increase the teaching quality but also offer some advice to the education reform of.