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   8951篇
  免费   298篇
各国政治   397篇
工人农民   362篇
世界政治   698篇
外交国际关系   351篇
法律   5814篇
中国政治   52篇
政治理论   1524篇
综合类   51篇
  2021年   64篇
  2020年   151篇
  2019年   198篇
  2018年   237篇
  2017年   285篇
  2016年   285篇
  2015年   186篇
  2014年   259篇
  2013年   960篇
  2012年   263篇
  2011年   265篇
  2010年   207篇
  2009年   196篇
  2008年   256篇
  2007年   293篇
  2006年   278篇
  2005年   214篇
  2004年   242篇
  2003年   238篇
  2002年   194篇
  2001年   343篇
  2000年   315篇
  1999年   238篇
  1998年   104篇
  1997年   77篇
  1996年   81篇
  1995年   81篇
  1994年   83篇
  1993年   71篇
  1992年   145篇
  1991年   158篇
  1990年   140篇
  1989年   158篇
  1988年   137篇
  1987年   155篇
  1986年   136篇
  1985年   156篇
  1984年   124篇
  1983年   140篇
  1982年   96篇
  1981年   93篇
  1980年   69篇
  1979年   100篇
  1978年   74篇
  1977年   68篇
  1976年   60篇
  1975年   48篇
  1974年   61篇
  1973年   60篇
  1971年   52篇
排序方式: 共有9249条查询结果,搜索用时 0 毫秒
981.
Physicians use the American Medical Association's Guides to the Evaluation of Permanent Impairment, 5th edition to evaluate millions of disability applicants each year. As major contributors to the chapter in the Guides devoted to assessing impairment associated with pain, we confronted the difficulties of incorporating pain into the Guides' overall evaluation system. Analysis of these difficulties is complicated by the paucity of research on the Guides, and by ambiguities and contradictions that pervade it. We propose that the ambiguities can be reduced if impairment is consistently defined in terms of organ or body part derangement, and disability in terms of activity limitations at the level of the whole person. We also propose a distinction between objective factors that may influence a person's ability to perform activities following injury. We suggest that when physicians examine disability applicants, they should evaluate both objective measures of organ or body part dysfunction and subjective reports of applicants -- especially ones regarding pain. We conclude that a comprehensive medical evaluation of disability applicant encompasses more than an impairment assessment.  相似文献   
982.
和平区社会主义学校成立于1999年。多年来,在区委、区政府,各民主党派区级组织、区党校和有关部门的关心、支持下,我们坚持以邓小平理论和“三个代表”重要思想为指导,坚持正确的办学方向,充分发挥区社校在统战教育培训中的主阵地作用,开拓进取,努力使区社校成为培养统一战线人  相似文献   
983.
The case history of a suicide due to 120 stab wounds of the chest is presented. The victim was a 41 years old man with a paranoid-hallucinative psychosis. The problem to distinguish homicides and suicides is discussed by the well-known criminalistic and forensic-medical criterias. Induced by this very unusual case the autopsy material with stab wounds was analyzed retrospectively (n = 246, out of about 14,000 autopsies at the Institut of Forensic Medicine in Hamburg). Cases with more than 40 single lesions are normally homicides. However, the pattern of the injuries is more important than the number--especially in doubtful cases.  相似文献   
984.
GC-subtyping was carried out on blood stains, that had been made on glass and stored under room temperature-conditions. Using isoelectric focusing in polyacrylamide gel, followed by transfer to nitrocellulose membrane by semi-dry-electroblotting and detection with enzyme-linked antibody complex the GC-detection was possible even after 64 days. Methodical problems are discussed.  相似文献   
985.
The state and city of New York have chronic fiscal difficulties, namely, expenditures that tend to exceed revenues by significant amounts. The deficits were moderate in the 1980s but have become large and acute in the 1990s as the state and city economies have been in a prolonged recession. Deficits are expected to continue well into the future. Supply side factors, particularly high wage levels, are the main causes of the state's deficits. For the city, supply side factors, particularly high employment, and demand side factors are main causes. Federal aid reduction is a minor cause. The city's fiscal condition is compared with that of the thirty other largest U.S. cities in a regression analysis which updates Gramlich's analysis of the period immediately before the famous New York City fiscal crisis of 1975.  相似文献   
986.
欧洲对于私生活的法律保护:法国与德国的比较   总被引:2,自引:0,他引:2  
比较法的研究有助于对欧盟成员国的不同法律传统的理解.①加强共同体公民的法律保障必须要借助于对其基本权利的保护.②在发现成员国的法律保护机制之间存在一定的相似性之后,比较法研究可以揭示出成员国国内法之间存在的一些重要差别.对于法国和德国尤其是如此.  相似文献   
987.
Industry stakeholders and Internet experts generally agree that networks using Internet Protocol version 6 (IPv6), an Internet communications standard which is being promoted strongly by many parties, would be technically superior to today’s networks, which are largely based on IPv4. The improvements designed for IPv6 could provide numerous benefits to Internet users, network administrators, and applications developers; among these potential benefits are cost reductions due to improved security and increased efficiency, improvements to existing products and services, and innovations leading to new products and services. However, there is wide disagreement about the characteristics and timing of benefits associated with IPv6, and the costs associated with the transition could be substantial. In this paper, we will discuss the likely costs of a transition to IPv6 for the major stakeholders and the potential benefits. Subsequently, we will introduce the cost impact of an accelerated adoption case and discuss potential ways in which the government could become involved in the process. This paper is based on a broader study funded by the National Telecommunications and Information Administration (NTIA) and National Institute of Standards and Technology (NIST). We wish to thank Greg Tassey, Fred Lee, Tim Sloan, B. Keith Fulton, John Streck, and Baran Erkel for comments and suggestions on earlier versions of this paper.  相似文献   
988.
989.
990.
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