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   10506篇
  免费   273篇
各国政治   749篇
工人农民   393篇
世界政治   802篇
外交国际关系   522篇
法律   5649篇
中国共产党   1篇
中国政治   66篇
政治理论   2515篇
综合类   82篇
  2021年   60篇
  2020年   135篇
  2019年   147篇
  2018年   222篇
  2017年   265篇
  2016年   273篇
  2015年   185篇
  2014年   229篇
  2013年   1367篇
  2012年   231篇
  2011年   254篇
  2010年   234篇
  2009年   268篇
  2008年   328篇
  2007年   317篇
  2006年   286篇
  2005年   257篇
  2004年   241篇
  2003年   243篇
  2002年   221篇
  2001年   347篇
  2000年   300篇
  1999年   292篇
  1998年   155篇
  1997年   132篇
  1996年   118篇
  1995年   119篇
  1994年   120篇
  1993年   112篇
  1992年   148篇
  1991年   208篇
  1990年   178篇
  1989年   182篇
  1988年   178篇
  1987年   197篇
  1986年   203篇
  1985年   159篇
  1984年   155篇
  1983年   148篇
  1982年   109篇
  1981年   109篇
  1980年   94篇
  1979年   142篇
  1978年   105篇
  1977年   86篇
  1976年   71篇
  1975年   88篇
  1974年   104篇
  1973年   90篇
  1971年   62篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
993.
994.
A simple and reliable previously reported extraction procedure has been extended to the analysis of a wide range of basic and neutral drugs in postmortem blood and other tissues. The method employs 200 microliters of blood treated with water and ammonia and extracted with diethyl ether. The concentrated extract is generally sufficiently clean for direct analysis by gas chromatography and high pressure liquid chromatography. Recovery, precision and linearity data are presented for selected drugs.  相似文献   
995.
Family violence and Asian drinkers   总被引:1,自引:0,他引:1  
This is a study of 70 consecutive referrals to the Department of Psychological Medicine, National University Hospital, for treatment of drinking problems. There were 31 Chinese and 39 Indian drinkers, with 63 males and 7 females. Family violence with physical abuse occurred in 21 cases (30%). One of three wives of drinkers had been physically abused, but no children were victims. Drinkers with family violence were generally younger and more severely dependent on alcohol than the non-violent drinkers. There was no relationship between family violence and the ethnicity or marital status of the drinkers.  相似文献   
996.
997.
Public administrators rely on written communications to send information to citizens and stakeholders, and they are among the heaviest users of the postal service. Behavioral science research has identified several techniques that public administrators can use to increase compliance with written requests and, in turn, increase effectiveness. Currently, however, many written communications from government bodies are not written in a manner that utilizes these techniques. It remains an ongoing challenge for public administrators to identify, understand, and use these techniques in the written communications sent by their organizations. This article presents a framework capturing seven prominent techniques in a simple mnemonic—INSPIRE—that is already being used by several government bodies in Australia. It also provides practical examples of how to use each technique and demonstrates that using these techniques could result in large aggregate improvements in effectiveness and socially desirable outcomes of public administrators' written communications.  相似文献   
998.
999.
Journal of Youth and Adolescence - To understand the development of cyber aggression during adolescence, it is important to consider the temporal variability of its potential predictors. This study...  相似文献   
1000.
Crime, Law and Social Change - Studies of bribery have been heavily influenced by the cost/benefit calculation, leaving social relationship of the involved parties under-explored. We propose the...  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