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   37263篇
  免费   1142篇
  国内免费   5篇
各国政治   1704篇
工人农民   1417篇
世界政治   2839篇
外交国际关系   1441篇
法律   22516篇
中国共产党   10篇
中国政治   249篇
政治理论   7825篇
综合类   409篇
  2020年   495篇
  2019年   588篇
  2018年   743篇
  2017年   868篇
  2016年   905篇
  2015年   658篇
  2014年   740篇
  2013年   3838篇
  2012年   990篇
  2011年   1009篇
  2010年   809篇
  2009年   879篇
  2008年   1006篇
  2007年   1081篇
  2006年   1025篇
  2005年   914篇
  2004年   927篇
  2003年   1002篇
  2002年   883篇
  2001年   1387篇
  2000年   1249篇
  1999年   1040篇
  1998年   579篇
  1997年   485篇
  1996年   451篇
  1995年   421篇
  1994年   505篇
  1993年   466篇
  1992年   714篇
  1991年   771篇
  1990年   708篇
  1989年   698篇
  1988年   701篇
  1987年   666篇
  1986年   716篇
  1985年   645篇
  1984年   569篇
  1983年   594篇
  1982年   463篇
  1981年   456篇
  1980年   341篇
  1979年   472篇
  1978年   325篇
  1977年   286篇
  1976年   257篇
  1975年   282篇
  1974年   318篇
  1973年   264篇
  1972年   240篇
  1971年   219篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
In recent years, legislators in all fifty states have given grandparents rights to petition for visitation privileges with grandchildren that can be enforced over parental objections. Grandparent visitation rights reflect an effort to protect meaningful relationships children enjoy with nonparental caregivers, enlist the assistance of extended family when the child's nuclear family is disrupted, and defend the interests of grandparents themselves. This psycholegal analysis explores the direct and indirect consequences of grandparent visitation statutes for family functioning. Statutory provisions are summarized, and the effects of these statutes are evaluated in light of what is known about the role of grandparents in child development, how courts evaluate children's "best interests" in grandparent visitation disputes, and how these statutes can alter family functioning in informal ways. The authors conclude that there are risks as well as benefits to children and families in grandparent visitation statutes, and suggest directions for procedural and statutory reform.  相似文献   
102.
Kornai's thesis that shortage results from demand expansions bred by the soft budget constraint, derives from his implicit assumption that price regimes of input and output firms are different. Since any firm is both an input and an output firm, which discards the assumption as logically untenable, excess demand can only turn up because of lower than contracted inputs of labor and management that are not offset by an adequate downward adjustment of earnings. Expansions of demand that appear to be autonomous, are incited by uncertain deliveries of inputs, that is, by inefficiency (of output firms) as well. A by far the largest part of excess demand can be explained by state preferences for fast growth. As planners are more successful in generating investment, and the ensuing consumer, demand than in expanding production, shortage is inevitable regardless of the character of the firms' budget constraints.  相似文献   
103.
104.
105.
106.
107.
The remains of an unidentified female neonate were discovered in a field in central Missouri. Examination revealed bilateral absence of the parietal bones. A search of the literature describing similar defects suggests that the present case represents a unique condition, described here for the first time.  相似文献   
108.
109.
110.
This paper examines the historical development of the Australian welfare state with a view to identifying the role that Australia's federal constitutional arrangements have played in shaping that development. Theoretical paradigms have been unanimous in their prognoses: that federal states are likely to be slow in developing welfare state programmes and typically spend less on them than unitary states. But recently it has been argued that federal institutions may have a “ratchet effect” of slowing down the pace of change, irrespective of its direction. The purpose of this chronological account of significant stages in the development of the Australian welfare state is to use the unfolding of historical events — far too rich in nuance and detail to be captured in quantitative modelling — as a test‐bed for establishing whether, and, if so, to what extent, federalism has impacted on the trajectory of Australian welfare state development.  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