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   16531篇
  免费   556篇
  国内免费   5篇
各国政治   666篇
工人农民   762篇
世界政治   1099篇
外交国际关系   546篇
法律   10649篇
中国共产党   6篇
中国政治   158篇
政治理论   3031篇
综合类   175篇
  2020年   226篇
  2019年   273篇
  2018年   347篇
  2017年   391篇
  2016年   407篇
  2015年   295篇
  2014年   307篇
  2013年   1495篇
  2012年   456篇
  2011年   482篇
  2010年   400篇
  2009年   421篇
  2008年   513篇
  2007年   547篇
  2006年   529篇
  2005年   478篇
  2004年   467篇
  2003年   490篇
  2002年   428篇
  2001年   667篇
  2000年   543篇
  1999年   478篇
  1998年   247篇
  1997年   172篇
  1996年   207篇
  1995年   171篇
  1994年   196篇
  1993年   196篇
  1992年   321篇
  1991年   354篇
  1990年   338篇
  1989年   282篇
  1988年   320篇
  1987年   273篇
  1986年   319篇
  1985年   281篇
  1984年   232篇
  1983年   222篇
  1982年   177篇
  1981年   191篇
  1980年   129篇
  1979年   175篇
  1978年   123篇
  1977年   110篇
  1976年   96篇
  1975年   123篇
  1974年   135篇
  1973年   105篇
  1972年   100篇
  1969年   98篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
141.
Presents the results of spectrophotometric and histologic examinations of subdural bleedings, meninges and brain matter in the acute period of a lethal craniocerebral injury. Discusses the possible use of a complex of histologic and biochemical studies in determination of the period elapsed since the injury.  相似文献   
142.
143.
144.
How partner violence is transferred across generations is relatively unexplored. This paper proposes that anger expression style (constructive, destructive direct, destructive indirect) mediates the relationship between exposure to family violence and dating violence perpetration by adolescents. Data are from 1,965 completed self-administered questionnaires given to eighth- and ninth-grade students in a primarily rural county in North Carolina in 1994. Results varied by gender and type of exposure to family violence. For females, destructive direct and destructive indirect anger expression styles mediated the relationship between experiencing family violence and dating violence perpetration. For males, this relationship was mediated primarily by destructive direct anger expression style. The association between witnessing family violence and dating violence perpetration for females was mediated by destructive direct anger expression style only. Witnessing family violence was not associated with dating violence perpetration for males, and therefore could not be mediated. This study suggests that adolescents exposed to family violence learn anger expression styles that put them at risk of being perpetrators of dating violence. Further research is needed to identify other mediators that explain how partner violence is transferred across generations.  相似文献   
145.
146.
147.
The present study drew on four competing theoretical perspectives to examine the relationship between family structure and juvenile delinquency. Using data from the Add Health Study, the authors examined nonserious and serious delinquent behavior across youth from different types of households and also considered how the association between family structure and delinquency might be conditioned by family processes and economic factors. Results from negative binomial regression analyses indicated that, in general, type of household was not a significant predictor of nonserious or serious delinquency. Rather, maternal attachment emerged as the most important determinant of delinquent behavior among youth from all family types. The results are discussed within the context of Hirschi's original interpretation of social control theory and future directions for research are suggested.  相似文献   
148.
In this article we explore how much state is necessary to make governance work. We begin by clarifying concepts of governance and the “shadow of hierarchy” and we follow this clarification with a brief overview of empirical findings on governance research in developed countries. We then discuss the dilemmas for governance in areas of limited statehood, where political institutions are too weak to hierarchically adopt and enforce collectively binding rules. While prospects for effective policymaking appear to be rather bleak in these areas, we argue that governance research has consistently overlooked the existence of functional equivalents to the shadow of hierarchy. We assert that governance with(out) government can work even in the absence of a strong shadow of hierarchy, we identify functional equivalents to the shadow of hierarchy, and we discuss to what extent they can help overcome issues of legitimacy and effectiveness in areas of limited statehood.  相似文献   
149.
In this article a practical case is described when gunshot directions and position of a victim's body at the moment of each shot were determined by natural simulation using an LG-78 laser (made in the form of a gun).  相似文献   
150.
Hair analysis has been presented by some authors as a possible tool of investigation for estimating patients' compliance to long-term therapies. This paper summarises the different publications that have been devoted to this topic and highlights the available statistical data presented to support this proposition. Qualitative results of such determinations may be of some interest but due to the enormous interindividual variations of quantitative data, the idea of using hair analysis to ascertain whether a patient has taken his treatment exactly as prescribed, clearly appears to be inapplicable.  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