首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   69682篇
  免费   3309篇
各国政治   4593篇
工人农民   2927篇
世界政治   6109篇
外交国际关系   3945篇
法律   32662篇
中国共产党   43篇
中国政治   808篇
政治理论   20877篇
综合类   1027篇
  2021年   411篇
  2020年   1180篇
  2019年   1537篇
  2018年   1710篇
  2017年   2017篇
  2016年   2233篇
  2015年   1859篇
  2014年   2129篇
  2013年   10693篇
  2012年   1645篇
  2011年   1774篇
  2010年   1861篇
  2009年   2145篇
  2008年   1839篇
  2007年   1825篇
  2006年   1972篇
  2005年   1859篇
  2004年   1752篇
  2003年   1508篇
  2002年   1557篇
  2001年   1541篇
  2000年   1360篇
  1999年   1212篇
  1998年   1128篇
  1997年   1008篇
  1996年   969篇
  1995年   934篇
  1994年   943篇
  1993年   962篇
  1992年   969篇
  1991年   1023篇
  1990年   954篇
  1989年   992篇
  1988年   1003篇
  1987年   1004篇
  1986年   974篇
  1985年   1044篇
  1984年   942篇
  1983年   988篇
  1982年   881篇
  1981年   856篇
  1980年   660篇
  1979年   681篇
  1978年   588篇
  1977年   537篇
  1976年   488篇
  1975年   401篇
  1974年   417篇
  1973年   432篇
  1972年   363篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
861.
862.
This paper highlights the difficulties and complexities of development assistance projects through an analysis of 2 Urban Functions in Rural Development projects conducted by the US Agency for International Development (AID) in Upper Volta and northern Cameroon in 1977-82. The general objectives of the Upper Volta project were to carry out urban function studies, develop a plan for strengthening the contributions of urban centers to rural development, develop a list of investment priorities for facilities and services, and increase the capacities of the Ministry in planning processes and methods. The 2-year project was hindered by a 1-year delay in initiating assistance due to difficulties in locating a contractor. In addition, the contractor and other team members felt there was little justification for studies of spatial organization in a country with so much evident need; rather, they focused on a small rural works program and establishment of effective local government, producing an inconsistency between team activities and the original project agreement. A request by the team to extend the project 1 year beyond its official completion date to compensate for early delays was rejected by USAID. Nonetheless, there was agreement that the project had a small positive impact in Upper Volta. Key lessons from Upper Volta were transferred to the Cameroon project. Although this project was judged to have achieved its objective of preparing a regional plan and of identifying programs for facilities, services, and small-scale enterprises, it was beset by problems of inexperience and technical underqualification of team members, poor communication, inconsistency of USAID guidelines, and methodological confusion. It is suggested that a central challenge for such programs is to create a body of qualified Americans who can work with their local counterparts in meeting the challenges of development. A measure of the success or failure of these projects should be the degree to which learning contributes to improved performance.  相似文献   
863.
864.
865.
The issue of whether civilly committed patients should be extended the right to accept or refuse treatment has generated much controversy and litigation during the past 15 years. In general, the current rule is that in nonemergency situations, individuals who are competent to give informed consent to treatment should be extended the right to refuse it. Obviously, the manner in which this rule is implemented partly depends on how competence to consent to treatment is defined and measured. Most researchers have implicitly assumed that an understanding of treatment information is the sole criterion of competence. It is argued that such a definition may be incomplete and is in need of reexamination. Following a review and analysis of the relevant legal and psychological literature, a comprehensive construct of competency to consent to treatment is proposed and future directions for research are discussed.  相似文献   
866.
867.
868.
869.
The traditional separation of health care delivery and financing systems is breaking down as various new types of health care facilities are established and as payment continues to be a major concern. Group Health Cooperative of Puget Sound (GHC) was organized as a prepaid group practice system responsive to consumers. Costs, methods of payment and delivery of care are interrelated and are all influenced by consumer ownership. GHC has been refining its benefit programs since 1945. Strategies for controlling use and costs focus on improved provider management and on flexibility. This article explains how the structure of GHC benefits the consumer.  相似文献   
870.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号