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   71416篇
  免费   3295篇
各国政治   4559篇
工人农民   2958篇
世界政治   6295篇
外交国际关系   3866篇
法律   34292篇
中国共产党   12篇
中国政治   755篇
政治理论   21024篇
综合类   950篇
  2021年   411篇
  2020年   1174篇
  2019年   1523篇
  2018年   1699篇
  2017年   2018篇
  2016年   2201篇
  2015年   1837篇
  2014年   2107篇
  2013年   10623篇
  2012年   1697篇
  2011年   1802篇
  2010年   1871篇
  2009年   2086篇
  2008年   1838篇
  2007年   1816篇
  2006年   1952篇
  2005年   1844篇
  2004年   1745篇
  2003年   1574篇
  2002年   1580篇
  2001年   1802篇
  2000年   1561篇
  1999年   1364篇
  1998年   1171篇
  1997年   1033篇
  1996年   991篇
  1995年   950篇
  1994年   986篇
  1993年   994篇
  1992年   1044篇
  1991年   1079篇
  1990年   1009篇
  1989年   1079篇
  1988年   1060篇
  1987年   1063篇
  1986年   1051篇
  1985年   1097篇
  1984年   984篇
  1983年   1044篇
  1982年   936篇
  1981年   891篇
  1980年   697篇
  1979年   746篇
  1978年   611篇
  1977年   558篇
  1976年   519篇
  1975年   441篇
  1974年   435篇
  1973年   439篇
  1972年   391篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
891.
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   
892.
893.
894.
Much attention has been given of late to the erosion of the "employment-at-will" doctrine. Exceptions to this doctrine began to emerge when courts held that at-will employees could sue if their termination violated public policy. The at-will doctrine was further eroded by court rulings that a contract requiring good cause in order to terminate could be inferred from employee handbooks, company personnel policies, and circumstances of employment. As the initial flood of wrongful termination lawsuits now reaches the appellate level, some guidance on the standards employers must observe can be drawn from court decisions. The authors examine these decisions as well as the legislative reform being proposed in response to them.  相似文献   
895.
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   
896.
897.
898.
899.
900.
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