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   10253篇
  免费   515篇
各国政治   422篇
工人农民   313篇
世界政治   605篇
外交国际关系   325篇
法律   7397篇
中国政治   50篇
政治理论   1584篇
综合类   72篇
  2020年   188篇
  2019年   200篇
  2018年   226篇
  2017年   244篇
  2016年   267篇
  2015年   221篇
  2014年   224篇
  2013年   970篇
  2012年   230篇
  2011年   293篇
  2010年   271篇
  2009年   279篇
  2008年   265篇
  2007年   268篇
  2006年   264篇
  2005年   234篇
  2004年   283篇
  2003年   257篇
  2002年   241篇
  2001年   443篇
  2000年   366篇
  1999年   308篇
  1998年   117篇
  1997年   79篇
  1996年   83篇
  1995年   96篇
  1994年   102篇
  1993年   113篇
  1992年   208篇
  1991年   234篇
  1990年   225篇
  1989年   235篇
  1988年   212篇
  1987年   220篇
  1986年   194篇
  1985年   205篇
  1984年   162篇
  1983年   169篇
  1982年   105篇
  1981年   98篇
  1980年   68篇
  1979年   136篇
  1978年   98篇
  1977年   80篇
  1976年   76篇
  1975年   73篇
  1974年   89篇
  1973年   88篇
  1972年   74篇
  1971年   70篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
171.
172.
173.
Quinn JB 《Newsweek》1983,101(15):62-63
  相似文献   
174.
Morganthau T  Coppola V  Carey J  Cooper N 《Newsweek》1983,102(6):30-6, 39-40
  相似文献   
175.
176.
177.
This Article examines the issues and questions which underlie the debate over the admission of "medical treatises" into evidence. The admissibility of this type of evidence is at issue most often in litigation involving complex medico-legal issues. This article outlines the evidentiary basis for admission of medical treatises and discusses the quality of medical treatises in an effort to determine what value to the fact-finder these treatises actually hold. The authors contend that there is an inherent untrustworthiness associated with medical treatises, but do not go so far as to suggest that medical treatises should never be admitted. The Article concludes that there is a need for greater caution in determining admissibility and recommends safeguards to better guarantee trustworthiness and reliability.  相似文献   
178.
"Selective pregnancy reduction" is a medical procedure used to reduce a multiple pregnancy, often a multiple pregnancy induced by in vitro fertilization or drug therapy. In such instances, healthy embryos are sacrificed in order to maximize the chances of survival of the remaining embryos or to allow the mother to choose the number of babies she wishes to deliver. Physicians appear to rely on Roe v. Wade in assuming the legality of the procedure, although such an assumption may be erroneous. Rather than continue to implant an excessive number of pre-embryos, the American Medical Association and the Association of Obstetrics and Gynecology should adopt guidelines similar to those established by the Voluntary Licensing Authority in London, which limit the number to be inserted to a maximum of three. Careful ultrasound monitoring could ensure that no more than three embryos implant when fertility drugs are used. Such practices would help physicians avoid the many moral, ethical, legal, and philosophical problems caused by selective pregnancy reduction.  相似文献   
179.
InMaryland v. Craig, the United States Supreme Court relied heavily on a brief prepared by a committee of the American Psychology-Law Society on behalf of the American Psychological Association (APA). The APA brief concluded that sexually abused children may be particularly vulnerable to distress in the legal process, especially when forced to confront the defendant face to face, and that such acute distress may be inconsistent with the state's interests in promotion of reliable testimony and child welfare. APA also argued that psychological theory and research provide foundations for individualized determination of the need for measures to protect children from face-to-face confrontation. *** DIRECT SUPPORT *** AFE06051 00002  相似文献   
180.
The author applies the 1964 model developed by Stanislaw Czamanski, based on theories of urban growth and industrial localization, to the analysis of urban growth in Mexico. "The advantages of this model in its application as a support instrument in the process of urban planning when the information available is incomplete are...discussed...." Census data for 44 cities in Mexico are used. (SUMMARY IN ENG)  相似文献   
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