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   17984篇
  免费   657篇
  国内免费   5篇
各国政治   817篇
工人农民   822篇
世界政治   1279篇
外交国际关系   666篇
法律   11430篇
中国共产党   6篇
中国政治   158篇
政治理论   3284篇
综合类   184篇
  2021年   118篇
  2020年   279篇
  2019年   353篇
  2018年   440篇
  2017年   509篇
  2016年   513篇
  2015年   368篇
  2014年   412篇
  2013年   1779篇
  2012年   536篇
  2011年   553篇
  2010年   436篇
  2009年   446篇
  2008年   559篇
  2007年   610篇
  2006年   571篇
  2005年   501篇
  2004年   502篇
  2003年   522篇
  2002年   444篇
  2001年   680篇
  2000年   565篇
  1999年   486篇
  1998年   258篇
  1997年   172篇
  1996年   205篇
  1995年   182篇
  1994年   203篇
  1993年   204篇
  1992年   326篇
  1991年   358篇
  1990年   344篇
  1989年   283篇
  1988年   321篇
  1987年   275篇
  1986年   319篇
  1985年   284篇
  1984年   234篇
  1983年   219篇
  1982年   177篇
  1981年   190篇
  1980年   127篇
  1979年   172篇
  1978年   122篇
  1977年   107篇
  1975年   124篇
  1974年   135篇
  1973年   104篇
  1972年   104篇
  1969年   98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.
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   
30.
Archibald T. Strong, born in Melbourne, was the son of an Australian scholar who went to an academic post at Liverpool. The younger Strong received his secondary and tertiary education in England. There, he became proficient in modern European languages and literature. He initially planned a career in the law, but for health reasons returned to Australia to the Department of English at the University of Melbourne. Prior to the First World War, Strong became prominent in Melbourne literary circles and also a prolific commentator on world affairs. As an early member of the Round Table group in Australia, Strong assessed Imperial Germany as posing an existential threat to the British Empire and hence to Australia's security. The nation's future, he believed, lay in unwavering defence of the Empire. Strong evinced a distinct impatience with fellow citizens, especially on the socialist left, who failed, in his view, to understand the realities of Australia's position in the world and what was at stake in the Great War.  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