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   25703篇
  免费   556篇
各国政治   954篇
工人农民   1642篇
世界政治   1668篇
外交国际关系   925篇
法律   15099篇
中国共产党   2篇
中国政治   90篇
政治理论   5696篇
综合类   183篇
  2021年   101篇
  2020年   245篇
  2019年   278篇
  2018年   1571篇
  2017年   1550篇
  2016年   1416篇
  2015年   373篇
  2014年   386篇
  2013年   1811篇
  2012年   614篇
  2011年   1305篇
  2010年   1313篇
  2009年   954篇
  2008年   1168篇
  2007年   1158篇
  2006年   489篇
  2005年   485篇
  2004年   589篇
  2003年   580篇
  2002年   425篇
  2001年   702篇
  2000年   638篇
  1999年   519篇
  1998年   308篇
  1997年   262篇
  1996年   230篇
  1995年   237篇
  1994年   276篇
  1993年   225篇
  1992年   345篇
  1991年   375篇
  1990年   329篇
  1989年   349篇
  1988年   325篇
  1987年   335篇
  1986年   341篇
  1985年   333篇
  1984年   299篇
  1983年   324篇
  1982年   267篇
  1981年   242篇
  1980年   180篇
  1979年   256篇
  1978年   174篇
  1977年   159篇
  1976年   132篇
  1975年   121篇
  1974年   136篇
  1973年   119篇
  1972年   113篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
21.
A method has been developed on reverse phase high performance liquid chromatography for simultaneous determination of methyl, ethyl and isopropyl alcohols under refractive index detection using pure water as the mobile phase. A good separation has been achieved between these alcohols. Detector response was linear with a detection limit of 5 mg/100 ml. Recovery studies were performed by adding known amounts of methyl and ethyl alcohols to blood, lung and liver within the range 80–90%. The reproducibility of the results was always >90%. The quantitative distribution of methyl alcohol in postmortem body tissues and fluids has been reported in three cases of poisoning.  相似文献   
22.
23.
24.
In re Browning.     
HELD: Prior judicial approval is not required for a surrogate to exercise the state constitutional right of self-determination of a patient who has become incompetent and who, while competent, specifically expressed her wishes regarding medical treatment decisions orally or in writing. The surrogate, in so exercising that right, must satisfy herself that certain requirements are met.  相似文献   
25.
This paper explores the multi-layered representations of violence and crime in the recent Hollywood film Gangs of New York [Scorcese (2003) Miramax]. We use our exploration of this film to suggest that popular culture, even through its most mainstream products, can be seen as a critical criminological space where alternative views of law, crime and the state are made available. Rather than understanding Hollywood movies simply as vehicles for disseminating conventional mores, we suggest that they can furnish critical (and complex) points of view on law and crime and that the project of a critical criminology can be strengthened by engaging more forthrightly with these ubiquitous cultural forms.  相似文献   
26.
Drawing on the strategic surprise, warning-response, and foreign policy literature, this article argues that the September 11 terror attacks should be regarded as a strategic surprise and examines a number of key factors that contributed to vulnerability and inhibited vigilance. Three broad explanatory "cuts" derived from the literature—psychological, bureau-organizational, and agenda-political—are deployed to sift through the rapidly expanding empirical record in an effort to shed light on the processes and contextual factors that left the United States vulnerable to the attacks. The article aims to improve our understanding of generic processes and practices that enhance or detract from vulnerability and vigilance.  相似文献   
27.
Jorge Sanjinés' 1960s films Revolución and Ukamau challenge the class and ethnic hierarchies of Bolivian society by casting the proletarian and indigenous masses as revolutionary liberators. The new national imaginary they evoke is tightly bound to the experimental cinematic techniques they employ, since their rejection of rationalist, realist aesthetics signals a partial undermining of the linear time of the modern nation. Ukamau both recalls and resists previous Bolivian indigenismo, which sought to co‐opt the Indian into a national mestizo consciousness. Its exoticist portrayal of the Indian ultimately limits its political effectiveness, but textual and contextual analyses show subversive Indian agency leaking through.  相似文献   
28.
29.
Corporate governance theory suggests that companies with dispersed and indirect ownership suffer from agency costs. A worst case is where several political authorities jointly own a company, which allows managers to operate with inferior efficiency. In political economy, the manager is not the major agency problem. Elected politicians may impair efficiency to improve their re‐election prospects. Since politicians have less influence in jointly owned firms, such companies are expected to perform better than those owned by a single public authority. Consistent with corporate governance – but not political economy – the empirical analysis suggests that dispersed municipal ownership impairs cost efficiency. In the Norwegian case of municipal refuse collection presented here, costs of dispersed ownership often outstrip gains from economies of scale. Use of jointly owned companies is not necessarily a proper response to efficiency problems inherent a fragmented local government structure.  相似文献   
30.
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