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   18839篇
  免费   590篇
  国内免费   5篇
各国政治   767篇
工人农民   807篇
世界政治   1215篇
外交国际关系   640篇
法律   12300篇
中国共产党   6篇
中国政治   170篇
政治理论   3326篇
综合类   203篇
  2020年   259篇
  2019年   301篇
  2018年   385篇
  2017年   430篇
  2016年   455篇
  2015年   318篇
  2014年   346篇
  2013年   1708篇
  2012年   506篇
  2011年   559篇
  2010年   447篇
  2009年   453篇
  2008年   565篇
  2007年   616篇
  2006年   579篇
  2005年   524篇
  2004年   533篇
  2003年   553篇
  2002年   491篇
  2001年   762篇
  2000年   634篇
  1999年   529篇
  1998年   263篇
  1997年   183篇
  1996年   215篇
  1995年   188篇
  1994年   212篇
  1993年   220篇
  1992年   357篇
  1991年   408篇
  1990年   388篇
  1989年   349篇
  1988年   396篇
  1987年   328篇
  1986年   375篇
  1985年   336篇
  1984年   278篇
  1983年   262篇
  1982年   193篇
  1981年   207篇
  1980年   136篇
  1979年   196篇
  1978年   143篇
  1977年   126篇
  1976年   120篇
  1975年   139篇
  1974年   159篇
  1973年   136篇
  1972年   128篇
  1969年   120篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
22.
23.
24.
This article summarizes some of the literature reviewed by the Girls Study Group, which is a federally funded project aimed at assessing the causes of girls’ delinquency as well as evaluating programs to address it. The literature reveals that a number of factors such as family dysfunction, involvement with antisocial peers, and living in disadvantaged neighborhoods are correlated with delinquency for both boys and girls. Some factors, however, are gender sensitive, meaning that either girls are more exposed to a given risk factor than boys or react somewhat differently to a given risk factor. Girls have higher rates of exposure to sexual assault, which is associated with delinquency and, although more research is needed, they are more affected by the impacts of early puberty, when it is coupled with harsh parenting and disadvantaged neighborhoods. This article discusses some implications of the research on correlates of delinquency for programming for girls and makes recommendations for program selection.  相似文献   
25.
The American Law Institute proposes that in contested physical custody cases the court should allocate to each parent a proportion of the child's time that approximates the proportion of time each has spent performing caretaking functions in the past. Examined through the lens of child development research, the approximation rule is unlikely to improve on the best interests standard. It is difficult to apply; is perceived as gender‐biased; creates a new focus for disputing parents; renders a poor estimate of parents’ contributions to their child's best interests; overlooks parents’ intangible, yet significant, contributions to their child's well‐being; and miscalculates the essence of how a child experiences the family. A preferable alternative is a better defined, contemporary best interests standard that accommodates new knowledge and reforms that encourage nonadversarial, individualized resolutions of custody disputes.  相似文献   
26.
27.
Having found that a deep hyperlink on Davis' website to livestreaming of a motorcycle race owned by Live Nation constitutescopying, the court granted Live Nation's Motion for summaryjudgment in its copyright infringement claim and enjoined Davisfrom maintaining the link.  相似文献   
28.
29.
30.
Data on bone tissue fractography are summarized and systematized. Possibilities of a microscopic fractography method in analysis of skeletal bone fractures in order to determine conditions of traumatic exposure were shown. Destruction of bone tissue is considered from the point of view of fragile and tough destruction using as a model solid body with crack at the top of which deformations of detachment, lateral and longitudinal shifts are acting. Morphologic features for different types of destruction were singled out. Use of these features may help to determine character and type of deformation at concrete areas of fracture during all destruction process.  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