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   78601篇
  免费   3090篇
各国政治   4682篇
工人农民   3138篇
世界政治   6836篇
外交国际关系   4052篇
法律   39470篇
中国共产党   11篇
中国政治   780篇
政治理论   21759篇
综合类   963篇
  2021年   457篇
  2020年   1223篇
  2019年   1582篇
  2018年   1826篇
  2017年   2154篇
  2016年   2337篇
  2015年   1900篇
  2014年   2187篇
  2013年   10938篇
  2012年   1909篇
  2011年   2055篇
  2010年   2001篇
  2009年   2181篇
  2008年   2046篇
  2007年   2043篇
  2006年   2125篇
  2005年   2029篇
  2004年   1944篇
  2003年   1778篇
  2002年   1781篇
  2001年   2217篇
  2000年   1934篇
  1999年   1656篇
  1998年   1267篇
  1997年   1094篇
  1996年   1051篇
  1995年   1017篇
  1994年   1073篇
  1993年   1070篇
  1992年   1214篇
  1991年   1247篇
  1990年   1162篇
  1989年   1256篇
  1988年   1204篇
  1987年   1221篇
  1986年   1215篇
  1985年   1257篇
  1984年   1088篇
  1983年   1149篇
  1982年   986篇
  1981年   943篇
  1980年   752篇
  1979年   839篇
  1978年   672篇
  1977年   596篇
  1976年   555篇
  1975年   483篇
  1974年   494篇
  1973年   491篇
  1972年   433篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
401.
A 22-year-old Korean soldier, who had received blows to the neck and epigastrium from an officer 10 h earlier, suddenly died after massive hematemesis. He had been in relatively good health except for episodes of blood-tinged vomiting approximately 5 and 7 months prior to this event. Postmortem examination revealed angiodysplasia involving the gastroesophageal junction, and the stomach was distended with blood. No abnormal findings were present around the whole viscera, and the duodenum was free of blood. The pathologic significance of upper gastrointestinal angiodysplasia as a potential source of bleeding and a chronologic correlation between the trauma and bleeding are discussed.  相似文献   
402.
Conclusion So can the Scots learn from Woolf? The answer must be in the affirmative, for his review points up similar problems to those we encounter here. There is no room for complacency in the civil justice system in Scotland, particularly in the field of Information Technology, where court systems and expertise are sadly lacking. It is clear that there is a need for a system of case management in all civil courts, targeted in particular areas or on particular cases, but only after a rigorous reappraisal of court timetabling; and that the public will lose confidence in a civil justice system which does not meet their needs for speedy and affordable decisions, perhaps by turning their backs on it and seeking means of Alternative Dispute Resolution. As for written pleadings, perhaps the most that can be said is that the case for their complete abolition is “not proven”, but that thestatus quo should not be maintained is beyond reasonable doubt. Sheriff of Lothian and Borders at Edinburgh; Member, Sheriff Court Rules Council.  相似文献   
403.
404.
405.
406.
While the beneficial aspects of a public accounting office's activity are not disputed here, it is argued in this article that four major distortions are produced: the concern with administrative rationality overlooks costs elsewhere (Section 2); budgetary aspects are overvalued compared to other issues (Section 3); incentives-oriented behavior is suppressed (Section 4); and the evaluation is biased by concentrating on minor, instead of major, aspects of inefficiency (Section 5). Section 6 considers alternatives to public accounting offices and makes some suggestions for new institutional arrangements particularly for constitutional rules.  相似文献   
407.
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   
408.
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   
409.
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   
410.
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