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   24600篇
  免费   757篇
各国政治   1238篇
工人农民   976篇
世界政治   2050篇
外交国际关系   921篇
法律   14384篇
中国共产党   3篇
中国政治   214篇
政治理论   5316篇
综合类   255篇
  2020年   316篇
  2019年   370篇
  2018年   508篇
  2017年   578篇
  2016年   612篇
  2015年   451篇
  2014年   503篇
  2013年   2631篇
  2012年   592篇
  2011年   706篇
  2010年   539篇
  2009年   588篇
  2008年   639篇
  2007年   648篇
  2006年   617篇
  2005年   558篇
  2004年   588篇
  2003年   625篇
  2002年   521篇
  2001年   945篇
  2000年   879篇
  1999年   733篇
  1998年   405篇
  1997年   338篇
  1996年   302篇
  1995年   292篇
  1994年   342篇
  1993年   307篇
  1992年   455篇
  1991年   488篇
  1990年   444篇
  1989年   440篇
  1988年   431篇
  1987年   458篇
  1986年   463篇
  1985年   449篇
  1984年   407篇
  1983年   444篇
  1982年   332篇
  1981年   297篇
  1980年   247篇
  1979年   325篇
  1978年   230篇
  1977年   197篇
  1976年   184篇
  1975年   169篇
  1974年   178篇
  1973年   162篇
  1972年   154篇
  1971年   138篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
141.
Observations of high velocity bloodspatter on adjacent objects   总被引:1,自引:0,他引:1  
In a recent homicide investigation, high velocity backspatter was observed on the sleeve cuff of the accused. These minute droplets were discovered only after microscopic examination and were limited in number. A study was initiated to determine if these were truly backspatter droplets or transferred blood produced from light contact with a bloody item. It was observed that the backspattered blood was primarily limited to contact or near contact shots. An exception was a shot into an already bloody surface. It was found that backspattered blood would deposit on the shooter's shirt sleeve irrespective of the weave pattern. Transferred blood was observed only on the fiber tops. This information was found to be useful in reconstruction of events in suicides as well as possible homicides.  相似文献   
142.
143.
Book Reviews in This Article:
Getting Rid of Patients: Contradictions in the Socialization of Physicians . By Terry Mizrahi
Physicians and Social Change . By John Colombotos and Corinne Kirchner
Changing Values in Medicine . Edited by Eric J. Cassell and Mark Siegler
Professional Ethics and Primary Care Medicine: Beyond Dilemmas and Decorum . By Harmon L. Smith and Larry R. Churchill
Physician—Patient Decision-Making: A Study in Medical Ethics . By Douglas N. Walton
With Dignity: The Search for Medicare and Medicaid . By Sheri I. David
The Dismissal of Students with Mental Disorders. Legal Issues, Policy Considerations, and Alternative Responses .
Courtroom Toxicology . By Marshall Houts, Randall C. Baselt, and Robert H. Cravey  相似文献   
144.
This paper describes the governance system of Spanish listed firms in the early 1990's. Although the institutional setting of the Spanish Stock Exchanges differs little from other European national markets, we found important differences in several aspects of corporate governance. In particular, some of the standard mechanisms of control (e.g. boards and institutional shareholders) do not play an active role, whereas ownership is relatively concentrated. Moreover, power indices suggest that controlling blocs of large shareholders are very likely to form. We thus conclude that the ownership of shares is a pivotal mechanism in the governance of Spanish corporations.  相似文献   
145.
146.
Collaborative Environmental Management: What Roles for Government?   总被引:1,自引:0,他引:1  
  相似文献   
147.
148.
Criminal justice agencies are organized sequentially — “output” from one agency is “input” to the next — but most scholars argue that criminal justice is not a system in a theoretical sense. In this article, it is argued that general systems theory (GST) reveals important insights into criminal justice structures and functions. Specifically, it is argued that the criminal justice system processes “cases” rather than people, and that the common goal of criminal justice processing is to “close cases so that they stay closed.” It also is argued that processing capacity progressively declines, in that at each system point the subsequent agency cannot input as many cases as the previous agency can output. Each agency therefore experiences “backward pressure” to close cases in order to reduce input to the next agency. Overall, this article highlights that criminal justice agents and agencies are best understood as operating in the context of the larger whole, thus it is concluded that criminal justice is a system in the sense of general systems theory.  相似文献   
149.
150.
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