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   46033篇
  免费   1764篇
  国内免费   5篇
各国政治   2074篇
工人农民   1902篇
世界政治   3520篇
外交国际关系   1643篇
法律   28340篇
中国共产党   10篇
中国政治   308篇
政治理论   9579篇
综合类   426篇
  2020年   730篇
  2019年   839篇
  2018年   1069篇
  2017年   1214篇
  2016年   1296篇
  2015年   949篇
  2014年   1062篇
  2013年   4781篇
  2012年   1190篇
  2011年   1246篇
  2010年   1107篇
  2009年   1164篇
  2008年   1274篇
  2007年   1325篇
  2006年   1307篇
  2005年   1183篇
  2004年   1181篇
  2003年   1150篇
  2002年   1098篇
  2001年   1651篇
  2000年   1518篇
  1999年   1241篇
  1998年   725篇
  1997年   554篇
  1996年   550篇
  1995年   538篇
  1994年   590篇
  1993年   553篇
  1992年   818篇
  1991年   874篇
  1990年   847篇
  1989年   803篇
  1988年   820篇
  1987年   792篇
  1986年   868篇
  1985年   844篇
  1984年   697篇
  1983年   692篇
  1982年   562篇
  1981年   525篇
  1980年   427篇
  1979年   573篇
  1978年   391篇
  1977年   319篇
  1976年   288篇
  1975年   332篇
  1974年   370篇
  1973年   301篇
  1972年   289篇
  1971年   246篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
221.
222.
223.
European Journal of Law and Economics - In this article I try to find answers for three questions: Which functions are exercised by the Court of Audit in the Netherlands, and what kinds of...  相似文献   
224.
The primary aim of this paper is to review the literature on preadolescent friendships in order to examine the relationship between preadolescent friendships and social support in adulthood. Social supports are important to health, both directly and as a stress buffer. Few studies, however, have specifically examined adult social supports from the perspective of their developmental precursors and critical developmental periods. Some data indicate that the preadolescent period may be of particular importance to the development of adult social skills and ties. Observational and empirical studies of preadolescent peer relationships, and in particular best friendships, suggest unique and critical contributions to adult social relatedness. Present research is suggestive but is insufficient to validate preadolescence as a critical period in adult social relatedness. Our review has implications for better understanding the mechanisms by which preadolescent friendships effect adult social support—an important mediator of the effects of stress on health. Further longitudinal study is needed.Received Ph.D. from University of Maryland. Research interests are social supports and psychological responses to trauma and disaster.Received M.D. from Yale University. Research interests are social supports and traumatic stress.  相似文献   
225.
We tested competing hypotheses derived from Gottfredson and Hirschis (1990) general theory and Moffitt's (1993a) developmental theory of antisocial behavior. The developmental theory argues that different factors give rise to antisocial behavior at different points in the life course. In contrast, the general theory maintains that the factor underlying antisocial behavior (i.e., criminal propensity) is the same at all ages. To test these competing predictions, we used longitudinal data spanning from age 5 to age 18 for the male subjects in the Dunedin Multidisciplinary Health and Development Study. Using reports from three sources (parents, teachers, and the boys themselves), we estimated second-order confirmatory factor models of antisocial behavior. These models provided consistent support for the developmental theory, showing that separate latent factors underlie childhood and adolescent antisocial behavior. Moreover, we found that these childhood and adolescent factors related in ways predicted by Moffitt's developmental theory to four correlates of antisocial behavior: Childhood antisocial behavior was related more strongly than adolescent antisocial behavior to low verbal ability, by per activity, and negative/impulsive personality, whereas adolescent antisocial behavior was related more strongly than childhood antisocial behavior to peer delinquency. The two underlying latent factors also showed the predicted differential relations to later criminal convictions: Childhood antisocial behavior was significantly more strongly associated with convictions for violence, while adolescent antisocial behavior was significantly more strongly associated with convictions for nonviolent offenses.  相似文献   
226.
227.
De Vault  James M. 《Public Choice》2002,110(1-2):1-22
This study examines the unfair trade decisions of the InternationalTrade Commission (ITC) and how they have been affected by Congress.It begins by identifying the means Congress can use to influenceITC decisions and then estimates both the extent to which thesemeans have been used and the extent to which they have shaped theITC's behavior. The study reaches two conclusions. First, Congresshas tried to shape the ITC's behavior, but it has not tried tomicromanage this behavior. Second, while the ITC's behavior hasbeen influenced by Congress, congressional influence is not asimportant as other factors, such as statutory criteria.  相似文献   
228.
229.
230.
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