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   11742篇
  免费   1245篇
各国政治   425篇
工人农民   388篇
世界政治   854篇
外交国际关系   291篇
法律   9050篇
中国共产党   1篇
中国政治   82篇
政治理论   1823篇
综合类   73篇
  2020年   344篇
  2019年   343篇
  2018年   395篇
  2017年   458篇
  2016年   469篇
  2015年   429篇
  2014年   420篇
  2013年   1187篇
  2012年   275篇
  2011年   365篇
  2010年   535篇
  2009年   489篇
  2008年   280篇
  2007年   249篇
  2006年   362篇
  2005年   243篇
  2004年   232篇
  2003年   225篇
  2002年   203篇
  2001年   440篇
  2000年   347篇
  1999年   296篇
  1998年   143篇
  1997年   128篇
  1996年   103篇
  1995年   131篇
  1994年   141篇
  1993年   116篇
  1992年   216篇
  1991年   235篇
  1990年   217篇
  1989年   231篇
  1988年   208篇
  1987年   178篇
  1986年   207篇
  1985年   225篇
  1984年   220篇
  1983年   185篇
  1982年   147篇
  1981年   131篇
  1980年   129篇
  1979年   150篇
  1978年   92篇
  1977年   79篇
  1976年   67篇
  1975年   71篇
  1974年   77篇
  1973年   64篇
  1972年   55篇
  1971年   56篇
排序方式: 共有10000条查询结果,搜索用时 78 毫秒
41.
The Green River Murder Investigation in King County, Washington, is currently the longest active serial murder investigation in U.S. history. During its course, over 26 separate scenes with from one to five victims each have been processed. The experience of the authors is presented in order to acquaint other agencies with techniques of outdoor scene processing that have evolved during recovery of remains from Green River and other skeletal cases.  相似文献   
42.
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   
43.
44.
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   
45.
46.
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   
47.
48.
49.
50.
In the statistical interpretation of forensic glass evidence it is standard practice to make the assumption of homogeneity of the refractive index (RI) of the source glass, or of localized homogeneity. However, the work of Locke and Hayes showed that, for toughened windscreen glass, this assumption might not be true. This work is well cited, but there appears to have been little follow-on published research. Furthermore, the toughening process is something known to affect the refractive index, and is a process that float glass does not undergo. Float glass is a major component of casework in New Zealand and for that reason it would be interesting to know whether the findings of Locke and Hayes apply when dealing with float glass. In this paper we describe an experiment similar to that of Locke and Hayes, systematically examining the variation of RI in a pane of float window glass. It was found that, although there were no systematic differences in refractive index, there were observable differences across the pane.  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