The first one is bribery commited by a person who has a close relationship with a state functionary,and the second one is bribery commited by a state functionary who has left his position.

Descriptive analysis are made from four aspects of date distribution,contents,factors of turnover,and research method on about 200 employee turnover papers in ScienceDirect dataware.

Meanwhile,it makes a comparative analysis of the enterprise knowledge loss and the influence factors based on four different attributions, such as the enterprise internal knowledge transfer process,the external communication process,the strategic contraction as well as the employee turnover,which could be reference for all round understanding and preventing knowledge loss.

Therefore, employee turnover gains more and more attention in the area of both enterprise and academic.

Based on introducing the background and significance of employee turnover study, this paper reviews four typical psychological casual models of employee voluntary turnover after 1980 at length.

A hospital infection sole duty enjoy the support of the leaders by displaying one’s broadand profound know of special during the establishment of the new hospital, therefoore the establishmentof the new hospital infection administration go forward standardize.