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   68897篇
  免费   3285篇
各国政治   4485篇
工人农民   2924篇
世界政治   5982篇
外交国际关系   3863篇
法律   32381篇
中国共产党   43篇
中国政治   790篇
政治理论   20690篇
综合类   1024篇
  2021年   406篇
  2020年   1169篇
  2019年   1526篇
  2018年   1693篇
  2017年   1986篇
  2016年   2199篇
  2015年   1847篇
  2014年   2109篇
  2013年   10541篇
  2012年   1628篇
  2011年   1744篇
  2010年   1841篇
  2009年   2116篇
  2008年   1813篇
  2007年   1796篇
  2006年   1941篇
  2005年   1844篇
  2004年   1709篇
  2003年   1479篇
  2002年   1529篇
  2001年   1533篇
  2000年   1346篇
  1999年   1200篇
  1998年   1104篇
  1997年   986篇
  1996年   958篇
  1995年   915篇
  1994年   925篇
  1993年   952篇
  1992年   956篇
  1991年   1019篇
  1990年   945篇
  1989年   984篇
  1988年   1002篇
  1987年   998篇
  1986年   976篇
  1985年   1037篇
  1984年   936篇
  1983年   983篇
  1982年   878篇
  1981年   850篇
  1980年   656篇
  1979年   681篇
  1978年   591篇
  1977年   535篇
  1976年   485篇
  1975年   401篇
  1974年   417篇
  1973年   433篇
  1972年   363篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
851.
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   
852.
853.
854.
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   
855.
856.
857.
858.
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   
859.
860.
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