Based on practice of video-cases teaching,this paper put forwards four sorts of contradictions,which are the contradiction between time limitation of classroom and expressing limi-tation of video cases,the contradiction between relative independence of video cases (part)and con-sistency of teaching objective (entirety),the contradiction between apparentness of video cases (phe-nomenon)and depth of teaching content (essence)and the contradiction between variability of video case class and control of class by teachers. This paper suggested teaching principle of part conforming to entirety. Meanwhile,it indicated that classroom video case teaching should have strict design, closely coordinated class discussion and teachers should be good at guiding and summarizing. Through these efforts,the above four contradictions can be resolved and designed video case teaching obtained good effect.

As important Internet users, college students need to establish good cyber ethics to promote healthy development of the Internet and meet the needs of their own growth. The characteristics of college students' cyber ethics include hierarchy, self-discipline, orientation and particularity. Self-respect and respect for others;hon-est and trustworthy;fair and mutual benefit;attention to public welfare and participation;patriotic, studious, cre-ate a harmonious network should be college students' network moral norms.

Obiecrive:To investigate the social support condition and its influencing factors of the rural elderly in Shandong province.Methods:With multi-stage stratified random sampling method,a questionnaire survey was conducted among 2200 elderly people aged over 60 years using self-developed questionnaire and Social Support Rating Scale (SSRS).Results:Total score of social support in 1115 rural elderly people was (38.01 ±8.39),higher than the national norm.Multiple factor analysis showed that marital status (P ＜ 0.01) and self-care ability (P ＜0.01) had significant effect on the social support of the rural elderly in Shandong Province.Conclusion:The social support condition of the rural elderly in Shandong province is good.We should pay more attention to the spir-itual demands of the rural elderly and further improve the social support of the rural elderly,and thusto promote the development of the rural elderly physical and mental health.

Objective:To explore the subjective well-being and its influencing factors of female elderly in ur-ban community in Shandong province. Methods: Used the multi-stage stratified sampling method to extract 449 elderly women in 6 communities of 18 cities in Shandong Province. The basic situation and Subjective well-being of their were investigated by using the self-designed questionnaire and Memorial University of Newfoundland Scale of Happiness ( MUNSH) . Results:The economic situation, the number of children, living conditions, self-care ability, chronic disease severity, and other variables have a significant effect on the subjective well-being of fe-male elderly. Conclusions:To improve the economic situation of the urban community elderly women, pay atten-tion to their physical and mental health level, improve the pension and health insurance system, intensify the con-struction of old-age care institutions, playing the roles of family, children, society in the network to support the community elderly women society, can significantly improve the community elderly women′s subjective well-be-ing.

Today our country's higher education has entered the popular stage, country put forward the “excellent physician” program to cultivate more outstanding and professional medical professionals. In this context, this paper studies the features' design in functional orientation, operation mechanism and the implementation of aspects to pro-mote the development of undergraduate tutorial system in medical schools. Then we can get more theoretical guarantees and provide guidance for training excellent physicians.

OBJECTIVE：To summarize key factors and shortcomings of essential medicine policy in China from 2009-2019， and to provide reference for the formulation and improvement of follow-up policy. METHODS ：Through the official websites such as National Health Commission and Chinese government website ，as well as other policy searching websites ，using“essential medicine”as key words，related policy texts were collected. Rothwell classification method was used to construct the analysis framework of essential medicine policy. The contents of policy texts were classified and coded by Excel 2013 software，and the codes were classified into the essential medicine related policy analysis framework. The descriptive analysis was carried out by SPSS 22.0 software，and the essential medicine policy was analyzed according to data distribution characteristics ，and the results were explained. Corresponding suggestions were put forward. RESULTS ：A total of 15 essential medicine policy texts were screened and obtained. X-dimension of the analysis framework of essential medicine policy included 3 types of basic policy tools ， Incorporat - counting for environmental effects and statistical noise in ing the operating environment into a nonparametric mea - data game formulations and interpretations for data envelopsupply-oriented ，environment-oriented and demand-oriented tools ；Y-dimension was the essential medicine policy objectives of accessibility，quality and rational use. From X-dimension ，the frequencies of above 3 basic policy tools use were 20.12％ ， 66.46％，13.41％，and the environmental policy tools were the most frequently used ；from Y-dimension ，the frequencies of above 3 objectives were 43.90％，32.93％，23.17％，the frequency of accessibility was the highest. The test results showed that there was statistical significance in the use frequency of X-dimension in Y-dimension （χ2＝11.719，P＝0.025＜0.05）. CONCLUSIONS ：The use frequency ratio of different essential medicine policy tools is different ，so it is necessary to reduce the frequency ratio of environmental policy tools ；there are differences in the internal structure of policy tools ，so it is necessary to optimize the structural allocation among policy tools ，and pay attention to the construction of demand-oriented tools . It is suggested that the accessibility of essential medicine should be enhanced ，and the connection between essential medicine list and medical insurance list should be strengthened；great importance should be attached to drug quality and drug quality supervision ；the scope of rational use of essential medicine should be clarified ，and the supervision responsibility of relevant government departments such as NMPA should be strengthened.

ObjectiveTo understand the development of basic rehabilitation services for people with disabilities in the regions of Eastern China. MethodsTo measure and evaluate the efficiency of basic rehabilitation services for people with disabilities in ten provinces and cities in eastern China from 2018 to 2020 based on the improved three-stage Window DEA model. ResultsThe efficiency of basic rehabilitation services for people with disabilities in eastern China was generally high, and Beijing and Zhejiang were the most efficient and DEA effective. The gross domestic product promoted the efficiency, and the number of people with disabilities limited the efficiency of basic rehabilitation services for people with disabilities. The low scale efficiency was an important reason for the imbalance of development among regions and the restriction of the efficiency of basic rehabilitation services for people with disabilities. ConclusionLocatities need to adjust the scale and structure of input according to the strong and effective target value, improve the social security system and the living standards. The top ones can focus on quality development, and the regions with more slack movement should focus on resource allocation and synchronization of the scale of resources, to improve the efficiency of basic rehabilitation services for people with disabilities.