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   29214篇
  免费   1443篇
各国政治   1368篇
工人农民   1771篇
世界政治   1973篇
外交国际关系   1054篇
法律   18490篇
中国共产党   3篇
中国政治   209篇
政治理论   5628篇
综合类   161篇
  2021年   123篇
  2020年   494篇
  2019年   520篇
  2018年   1820篇
  2017年   1877篇
  2016年   1711篇
  2015年   707篇
  2014年   704篇
  2013年   2510篇
  2012年   741篇
  2011年   1553篇
  2010年   1660篇
  2009年   1227篇
  2008年   1240篇
  2007年   1151篇
  2006年   616篇
  2005年   525篇
  2004年   639篇
  2003年   622篇
  2002年   436篇
  2001年   780篇
  2000年   683篇
  1999年   560篇
  1998年   290篇
  1997年   246篇
  1996年   233篇
  1995年   258篇
  1994年   270篇
  1993年   221篇
  1992年   361篇
  1991年   371篇
  1990年   342篇
  1989年   358篇
  1988年   357篇
  1987年   330篇
  1986年   353篇
  1985年   355篇
  1984年   362篇
  1983年   337篇
  1982年   243篇
  1981年   189篇
  1980年   207篇
  1979年   248篇
  1978年   172篇
  1977年   150篇
  1976年   128篇
  1975年   123篇
  1974年   128篇
  1973年   118篇
  1971年   113篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
61.
62.
63.
64.
This article explores the reasons for the introduction of anticorruption agencies of a specific type in Eastern Europe. It is argued that one of the important functions of these agencies—which are stronger on information gathering, coordination and strategy rather than on investigation of concrete cases—is to give to the government some leverage over the anticorruption discourse. Presenting the anticorruption commissions and agencies as (discourse-controlling) instruments gives an answer to the troubling question why governing parties are at all interested in the introduction of such bodies. Apart from instrumentalization in political discourse, anticorruption bodies in Eastern Europe have had other effects as well. As shown in the Baltic case, institutional engineering provides for a brief window of opportunity during which political forces committed to integrity could gain the upper hand. The problem in Eastern Europe, however, is not the lack of such windows of opportunities—it is more the lack of really committed political forces capable of continuous and consistent anticorruption effort.  相似文献   
65.
66.
67.
68.
The possible contribution of poppy seed foods to positive opiate urinalysis results, especially from foods available in the Pacific Rim area, has recently become an issue for the U.S. Army Forensic Toxicology Drug Testing Laboratory in Hawaii. To assess the likelihood of this possible contribution, seven different poppy seed food products were consumed by male and female volunteers, and urine specimens were collected at time increments up to either 24 or 72 h. Specimens were evaluated for opiates using Roche Abuscreen radioimmunoassay (RIA), and all RIA positive specimens were analyzed for morphine and codeine using gas chromatography/mass spectrometry (GC-MS). Poppy seed cake, bagels, muffins, and rolls did not contain sufficient quantities of poppy seeds to give rise to opiate positive specimens by U.S. Department of Defense (DOD) GC-MS cutoff levels (morphine = 4000 ng/mL, codeine = 2000 ng/mL), although a number of specimens were positive by National Institute on Drug Abuse (NIDA) cutoff levels (morphine and codeine = 300 ng/mL). However, ingestion of poppy seed streusel or Danish pastry led to confirmed morphine and codeine positive specimens, irrespective of the use of DOD or NIDA confirmation cutoff values. In addition, significant amounts of codeine were observed in a number of these specimens. These findings argue against the unqualified application of previously published quantitative guidelines for eliminating poppy seed ingestion as a possible cause for a positive opiate urinalysis result.  相似文献   
69.
70.
Research has indicated that school factors such as communal school organization and student bonding are predictive of school disorder, with greater communal organization and greater student bonding leading to less delinquency and victimization. Data from a nationally representative sample of 254 public, nonalternative, secondary schools were used to examine structural equation models representing hypothesized relationships among communal school organization, student bonding, and school disorder. The hypothesis that communally organized schools would have less disorder held true for teacher victimization and student delinquency, but not for student victimization. In addition, the hypothesis that the relationship between communal school organization and school disorder would be mediated by student bonding was supported for student delinquency, but not for teacher victimization.  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