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   19158篇
  免费   1281篇
各国政治   885篇
工人农民   913篇
世界政治   1367篇
外交国际关系   689篇
法律   12880篇
中国共产党   2篇
中国政治   128篇
政治理论   3473篇
综合类   102篇
  2023年   83篇
  2021年   93篇
  2020年   449篇
  2019年   474篇
  2018年   603篇
  2017年   634篇
  2016年   713篇
  2015年   542篇
  2014年   584篇
  2013年   2129篇
  2012年   520篇
  2011年   557篇
  2010年   579篇
  2009年   617篇
  2008年   562篇
  2007年   559篇
  2006年   572篇
  2005年   478篇
  2004年   512篇
  2003年   407篇
  2002年   455篇
  2001年   708篇
  2000年   647篇
  1999年   511篇
  1998年   280篇
  1997年   212篇
  1996年   217篇
  1995年   225篇
  1994年   204篇
  1993年   222篇
  1992年   330篇
  1991年   332篇
  1990年   319篇
  1989年   300篇
  1988年   327篇
  1987年   287篇
  1986年   339篇
  1985年   337篇
  1984年   269篇
  1983年   239篇
  1982年   185篇
  1981年   169篇
  1980年   160篇
  1979年   230篇
  1978年   119篇
  1977年   100篇
  1976年   82篇
  1975年   97篇
  1974年   128篇
  1973年   87篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
211.
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   
212.
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   
213.
214.
215.
216.
217.
218.
Health care financing has undergone numerous structural changes over the years. Change continues while extreme growth seriously affects the health care focus. The author examines the multiclass system and health financing trends. Restructuring techniques are also discussed.  相似文献   
219.
220.
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