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   20582篇
  免费   1459篇
各国政治   788篇
工人农民   695篇
世界政治   1611篇
外交国际关系   573篇
法律   14383篇
中国共产党   2篇
中国政治   135篇
政治理论   3741篇
综合类   113篇
  2021年   100篇
  2020年   417篇
  2019年   474篇
  2018年   539篇
  2017年   632篇
  2016年   655篇
  2015年   563篇
  2014年   587篇
  2013年   2001篇
  2012年   473篇
  2011年   619篇
  2010年   708篇
  2009年   677篇
  2008年   539篇
  2007年   485篇
  2006年   588篇
  2005年   467篇
  2004年   467篇
  2003年   442篇
  2002年   426篇
  2001年   845篇
  2000年   710篇
  1999年   547篇
  1998年   312篇
  1997年   272篇
  1996年   217篇
  1995年   243篇
  1994年   277篇
  1993年   239篇
  1992年   378篇
  1991年   419篇
  1990年   393篇
  1989年   417篇
  1988年   395篇
  1987年   345篇
  1986年   412篇
  1985年   397篇
  1984年   358篇
  1983年   334篇
  1982年   245篇
  1981年   236篇
  1980年   207篇
  1979年   260篇
  1978年   163篇
  1977年   150篇
  1976年   135篇
  1975年   104篇
  1974年   144篇
  1973年   130篇
  1972年   121篇
排序方式: 共有10000条查询结果,搜索用时 171 毫秒
71.
This article examines voluntary mediation and provides suggested criteria for attorneys in deciding whether or not to use mediation. The author discusses what mediation has to offer, what it takes to make it work, and important cautions for attorneys in deciding about the use of this process.  相似文献   
72.
Comparison of a suspected biter's dental arches with the patterned injury of a bite mark is especially difficult when the bite occurs in an anatomic location with a small radius of curvature or with complex or compound curves. The authors present two case reports in which human skin was used as a template for the reproduction of a bite. In one case the victim's skin was used; in the other, the skin of a anatomically similar person was used. The use of inked dental casts, photography, and transparent overlays significantly reduced the errors common to analysis of bite marks in these highly curved areas.  相似文献   
73.
74.
In motorcycle accidents involving two riders, medicolegal identification of the driver is necessary when one or both riders die. It is particularly important in the latter case, because the survivor almost always insists that he or she was not driving. One characteristic injury that distinguishes the driver from the passenger is inguinal contusion-laceration (accompanied internally by pelvic fracture). This injury, caused by collision of the pelvis with the fuel tank, identifies the driver.  相似文献   
75.
76.
Kindergarten policy varies widely both across and within states. Over the past decade, a number of states have instituted a full‐day kindergarten requirement and others are considering it as a way to increase educational achievement. Many parents also support full‐day kindergarten as a source of child care. This paper uses the Early Child Longitudinal Study–Kindergarten Class of 1998–1999 to evaluate the efficacy of this policy. In ordinary least squares, probit, county fixed effects, and instrumental variables models, we find that there are initial benefits for students and the mothers of students who attend full‐day kindergarten, but that these differences largely evaporate by third grade. Contrary to claims by some advocates, attending full‐day kindergarten is found to have no additional benefit for students in families with income below the poverty threshold. © 2006 by the Association for Public Policy Analysis and Management  相似文献   
77.
The Department of Defense has taken steps in recent years to improve outcomes for victims of domestic violence who reside on military installations. In 2000, the Defense Task Force on Domestic Violence was established, a military‐civilian group of experts charged with improving the military's effectiveness in addressing domestic violence in the Armed Forces in a variety of areas including offender accountability, coordination between military and civilian communities, and changing the military climate around domestic violence. This article will provide an overview of the Task Force, its work during the past three years, and its recommendations.  相似文献   
78.
79.
The population-adjusted rate of teenage suicide in King County, Washington, was reviewed for the 26 years from 1959 to 1984. For the entire period, the rate did not change significantly. An abrupt change did occur during the middle of this period, but, for reasons discussed in the text, this may well represent a change in procedures and philosophy of death certification rather than a real change in rate. Reasons for the apparent discrepancy with national statistics are discussed.  相似文献   
80.
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