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   14903篇
  免费   228篇
各国政治   494篇
工人农民   1314篇
世界政治   685篇
外交国际关系   581篇
法律   8706篇
中国政治   35篇
政治理论   3274篇
综合类   42篇
  2023年   48篇
  2021年   45篇
  2020年   102篇
  2019年   126篇
  2018年   1412篇
  2017年   1358篇
  2016年   1176篇
  2015年   179篇
  2014年   177篇
  2013年   749篇
  2012年   365篇
  2011年   1113篇
  2010年   1140篇
  2009年   754篇
  2008年   900篇
  2007年   874篇
  2006年   207篇
  2005年   225篇
  2004年   346篇
  2003年   336篇
  2002年   192篇
  2001年   255篇
  2000年   259篇
  1999年   186篇
  1998年   108篇
  1997年   110篇
  1996年   103篇
  1995年   113篇
  1994年   113篇
  1993年   75篇
  1992年   139篇
  1991年   122篇
  1990年   157篇
  1989年   137篇
  1988年   162篇
  1987年   147篇
  1986年   112篇
  1985年   125篇
  1984年   109篇
  1983年   93篇
  1982年   66篇
  1981年   58篇
  1980年   49篇
  1979年   61篇
  1978年   48篇
  1977年   35篇
  1976年   37篇
  1975年   31篇
  1974年   43篇
  1973年   32篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
132.
133.
One assumption of Key's reward-punishment theory that has attracted comparatively little attention is that voters hold the incumbent party responsible for all manner of economic fluctuations. A brief review of the survey literature in economic voting indicates that this assumption is in need of revision. The handful of existing studies in political science on responsibility attribution suffers from a lack of conceptual clarity and a failure to develop a theory of the attribution process. This paper outlines a model of economic voting in which people act as intuitive jurors using various decision rules to evaluate the evidence surrounding the president's responsibility for national economic problems. The generalizability of the framework and directions for future research are discussed  相似文献   
134.
This article analyzes the enforcement practices of the Investment Industry Regulatory Organization of Canada (IIROC) and compares them with its predecessor, the Investment Dealers Association of Canada (IDA). The study collected data from IIROC's tribunal cases decided between June 2008 and December 2019 and compared them with data on the IDA's enforcement of complaints from 1984 to 2008. The findings reveal no statistically significant difference in the fines imposed by the two regulatory bodies. Furthermore, IIROC has refrained from issuing lenient penalties such as retaking examinations/courses or mandating terms and conditions for offenders. The results also indicate no significant impact on the number or distribution of offense types committed in the industry over time. Most notably, the Ontario Securities Commission, the Canadian Securities Regulators, and the new Self-Regulatory Organization of Canada should consider these findings when formulating policies concerning the role of self-regulation in the financial markets.  相似文献   
135.
136.
137.
138.
139.
The article deals with experimental data on design of the method used for detection of sperm, blood and vaginal secretions according to isoelectric points of acid phosphatases, differential diagnosis of ABO group antigens in "mixed" stains as well as detection of phenotype of red cell acid phosphatase by isoelectric focusing method.  相似文献   
140.
The authors reviewed at autopsy the causes of death of 274 patients with evidence of intravenous drug abuse who had been admitted to a large public hospital. There were 127 who died from diseases unrelated to intravenous drug abuse, and in 41% of these, chronic alcoholism was implicated. Deaths from overdose syndromes and drug-related organ pathology comprised only 11% of all cases. The mean age at death was 39 years. There was a male/female ratio of 3.6:1. Half of all patients died from infection--72 from acquired immunodeficiency syndrome (AIDS) alone. These findings indicate that persons hospitalized with a history of intravenous drug abuse usually die from causes other than overdose and that AIDS and chronic alcoholism are significant problems. Emphasis should be placed upon detecting "hidden" intravenous drug deaths to provide more accurate statistical information.  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