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   11718篇
  免费   390篇
各国政治   679篇
工人农民   491篇
世界政治   802篇
外交国际关系   458篇
法律   6722篇
中国共产党   4篇
中国政治   70篇
政治理论   2732篇
综合类   150篇
  2021年   66篇
  2020年   156篇
  2019年   198篇
  2018年   302篇
  2017年   306篇
  2016年   320篇
  2015年   210篇
  2014年   230篇
  2013年   1423篇
  2012年   329篇
  2011年   326篇
  2010年   268篇
  2009年   294篇
  2008年   359篇
  2007年   337篇
  2006年   337篇
  2005年   334篇
  2004年   325篇
  2003年   280篇
  2002年   295篇
  2001年   341篇
  2000年   341篇
  1999年   251篇
  1998年   169篇
  1997年   170篇
  1996年   161篇
  1995年   142篇
  1994年   133篇
  1993年   144篇
  1992年   224篇
  1991年   243篇
  1990年   222篇
  1989年   221篇
  1988年   191篇
  1987年   199篇
  1986年   200篇
  1985年   189篇
  1984年   179篇
  1983年   190篇
  1982年   124篇
  1981年   128篇
  1980年   104篇
  1979年   118篇
  1978年   90篇
  1977年   84篇
  1976年   67篇
  1975年   72篇
  1974年   76篇
  1973年   80篇
  1972年   67篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
231.
Merit rating for physicians' malpractice premiums: only a modest deterrent   总被引:1,自引:0,他引:1  
Rolph JE 《Law and contemporary problems》1991,54(1-2):Spring 65-Spring 86
  相似文献   
232.
233.
The Equal Employment Opportunity Commission (EEOC) recently issued its final regulations on the Americans with Disabilities Act (ADA). Although the regulations offer some guidance for employers on how to comply with the Act, they fail to provide specific answers to the many complicated compliance questions that will surely arise. Further, the regulations are almost totally silent on certain critical issues related to insurance, workers' compensation, and potential conflicts between ADA obligations and terms of collective bargaining agreements. The EEOC has essentially left the resolution of many important ADA questions to case-by-case determination and the litigation process.  相似文献   
234.
"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   
235.
236.
A number of social and psychological factors present in most adolescent parents place them at high risk for abusive behavior toward their children. However, current child abuse potential measures do not include adolescent samples as part of the psychometric data base. Consequently, the purpose of this study was twofold: (1) to investigate whether a Black adolescent sample would perform differently than an adult nonabusing sample on the Child Abuse Potential Inventory (CAP), and (2) to examine the relationship between history of abuse or witnessing violence to scores on the CAP. Results revealed that Black adolescents scored significantly higher than the adult normative sample on the CAP; consequently, cutoff scores need to be empirically established for adolescents. Additional analyses indicated that a history of abuse, as well as a history of witnessing violence, are associated with a high potential for abuse.  相似文献   
237.
Although the formal institutional structure that defines the temporal order of play in a policy game between the Congress and President ought to provide Congress with agenda power, the President is traditionally treated as the dominant player in this relationship. We show that if the President can make clear-cut commitments, presidential commitment can counter the dominance hierarchy and the complexion of equilibrium outcomes. Thus, the details of political interactions (in particular, the possibilities for commitment) may be as important as the formal specification of institutional structure.We thank Peter Aranson, David Austen-Smith, Ed Campos, Gerry Faulhaber, Art Frank, Ken Koford, William Riker, Janet Pack, the anonymous referees, and seminar participants at the University of Delaware, the University of Pennsylvania, and the University of Rochester for helpful comments, subject to the usual caveat. We also thank Joel Friedlander and Harold Dichter for research assistance.  相似文献   
238.
239.
240.
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