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   68928篇
  免费   3037篇
各国政治   4607篇
工人农民   2866篇
世界政治   6051篇
外交国际关系   3900篇
法律   31939篇
中国共产党   10篇
中国政治   755篇
政治理论   20891篇
综合类   946篇
  2021年   410篇
  2020年   1177篇
  2019年   1536篇
  2018年   1677篇
  2017年   1971篇
  2016年   2207篇
  2015年   1846篇
  2014年   2127篇
  2013年   10699篇
  2012年   1605篇
  2011年   1734篇
  2010年   1835篇
  2009年   2079篇
  2008年   1758篇
  2007年   1722篇
  2006年   1890篇
  2005年   1769篇
  2004年   1683篇
  2003年   1478篇
  2002年   1530篇
  2001年   1516篇
  2000年   1331篇
  1999年   1197篇
  1998年   1112篇
  1997年   1009篇
  1996年   958篇
  1995年   922篇
  1994年   931篇
  1993年   952篇
  1992年   956篇
  1991年   984篇
  1990年   936篇
  1989年   990篇
  1988年   970篇
  1987年   979篇
  1986年   964篇
  1985年   1025篇
  1984年   936篇
  1983年   968篇
  1982年   888篇
  1981年   835篇
  1980年   650篇
  1979年   699篇
  1978年   592篇
  1977年   527篇
  1976年   487篇
  1975年   421篇
  1974年   433篇
  1973年   441篇
  1972年   388篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
The Hon. Editor has received the following letter commenting on Professor Kirk's and Mr. Sloyan's article on the New Covent Garden Market (Vol. 56 Spring 1978). The author is lecturer in applied economics in the Department of Social and Economic Research, University of Glasgow. Mr. Heald's letter is followed by a reply by Professor Kirk on behalf of Mr. Sloyan and himself.  相似文献   
993.
994.
995.
996.
The results of a study of the polymorphism of the sixth component of human complement by means of isoelectric focusing in polyacrylamide gels with subsequent C-dependent lysis in an agarose overlay containing C6 deficient rabbit serum are reported. The allele frequencies obtained (C6A = 0.613, C6B = 0.379, C6R = 0.008) are in good agreement with those previously published. The mode of inheritance in 47 families with 173 offspring as well as 26 mother-child combinations is in agreement with a formal genetical model: "C6A, C6B, C6A1 and C6B1 at an autosomal locus". The inclusion of this system into a blood group expertise in Germany can be recommended.  相似文献   
997.
998.
The paper shows that if the class of admissible preference orderings is restricted in a manner appropriate for economic and political models, then Arrow's impossibility theorem for social welfare functions continues to be valid. Specifically if the space of alternatives is R + n , n ≥ 3, where each dimension represents a different public good and if each person's preferences are restricted to be convex, continuous, and strictly monotonic, then no social welfare function exists that satisfies unanimity, independence of irrelevant alternatives, and nondictatorship.  相似文献   
999.
In this paper two arguments are advanced with regard to parental influence on adolescent political attitudes. First, variables like parental affect, which are of considerable theoretical interest to social psychologists, are of relatively little interest to the system-level concerns of political scientists because of their lack of variance. Second, the additive issue salience/perceptual accuracy model I proposed (1974) is a better fit to the data than a multiplicative cue-giving/parental affect model proposed in this journal by Cundy (1979). The fit of the two models is tested with the Jennings (1965) socialization data.Cundy, D. T. The dynamics of interpersonal attitudinal influence.Political Behavior, 1979,1, 269–284.  相似文献   
1000.
Abstract. In an attempt to tighten up its financial systems and improve control of expenditures, the Canadian federal government has set up a new office, that of the Comptroller General. One of this Office's responsibilities is to administer the Treasury Board's policy on program evaluation, which says that all government programs should be periodically reviewed for their effectiveness in meeting goals and for the efficiency with which they are managed. The paper describes the Office's approach to program evaluation, reviews program evaluation policy in three other countries and discusses the principles and practical problems which limit the application of evaluation research. Evaluation activity in Canada is endangered in its cradle by two threats: the tendency of proponents to over-exuberance; and the cynics' view that the activity is of such limited applicability that potential savings are negligible. A third problem is a tendency to fuse together policy-related and management-related assessment activity. Evaluation activity conducted from the operational management point of view which takes program goals for granted will surely result in sequences of small victories and economies. This is worth doing well. But the dramatic import of effectiveness evaluation as a ‘bottom line’ for judging the worth of whole programs — that is, as a policy tool — should not be allowed to generate false expectations about the scope for improvement in routine management of the public service. Sommaire. En vue de fortifier ses systèmes financiers et d'améliorer le contrôle exercé sur ses dépenses, le gouvemement fédéral canadien a créé un nouveau poste, celui du Contrôleur général. Une des responsabilités de cette function est d'administrer la politique du Conseil du trésor en matière d'évaluation de programmes. Cette politique exige que les programmes gouvernementaux soient évalués périodiquement afin de déterminer leur efficacitéà rencontrer leurs objectifs ainsi que la capacité de rendement de leur gestion. Ce document décrit l'approche du Bureau du Contrôleur général en matière d'évaluation de programmes; examine les politiques correspondantes dans trois autres pays; et discute des principes et des problèmes pratiques qui limitent l'applicabilité de l'évaluation en recherche.  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