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   21193篇
  免费   665篇
  国内免费   5篇
各国政治   887篇
工人农民   926篇
世界政治   1511篇
外交国际关系   734篇
法律   13411篇
中国共产党   6篇
中国政治   191篇
政治理论   4011篇
综合类   186篇
  2021年   120篇
  2020年   285篇
  2019年   365篇
  2018年   453篇
  2017年   492篇
  2016年   504篇
  2015年   359篇
  2014年   411篇
  2013年   2027篇
  2012年   561篇
  2011年   601篇
  2010年   499篇
  2009年   524篇
  2008年   632篇
  2007年   673篇
  2006年   642篇
  2005年   581篇
  2004年   585篇
  2003年   584篇
  2002年   509篇
  2001年   894篇
  2000年   761篇
  1999年   614篇
  1998年   317篇
  1997年   231篇
  1996年   248篇
  1995年   219篇
  1994年   241篇
  1993年   232篇
  1992年   410篇
  1991年   461篇
  1990年   442篇
  1989年   390篇
  1988年   406篇
  1987年   377篇
  1986年   403篇
  1985年   362篇
  1984年   308篇
  1983年   293篇
  1982年   226篇
  1981年   257篇
  1980年   164篇
  1979年   242篇
  1978年   163篇
  1977年   130篇
  1976年   119篇
  1975年   154篇
  1974年   167篇
  1973年   146篇
  1972年   133篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
141.
142.
An important problem in the political economy of the UK is that the disparity of unemployment rates across its regions is much more marked than the corresponding dispersion of wage rates. One possibility is that this is due to the attitude of trade unions to their members in different regions. If unions wish to preserve parity between members in different regions then they will value wage equality between regions over and above wage levels. This may then persuade them to overlook inter-regional productivity differences in setting wages. The price that low-efficiency regions will then pay for this desire for wage equality is higher unemployment rates.Much of the research for this paper was carried out while the author was visiting the Trade Union Economics Research Institute (FIEF), Stockholm in 1989. An earlier version of this paper was presented at a seminar there and the author is gratefully to Villy Bergstrom, Paul Chen, Douglas Hibbs, Eva Udden-Jondal and other institute members for several useful comments. Comments from Kevin Lee, John Spencer and an anonymous referee have also substantially improved the paper. The usual disclaimer applies.  相似文献   
143.
144.
Rethinking the Meaning of Public Health   总被引:1,自引:0,他引:1  
  相似文献   
145.
146.
147.
A dissecting intramural haematoma of the coronary artery is an infrequent cause of sudden and unexpected death. Most cases are women and in a significant number of these women, the haematoma occurred at term to 80 days postpartum. Because the intimal rupture and communication with the lumen were not found in most of the cases, the site of rupture has been considered to be a vasa vasorum. The authors report on a case of one woman who was at a later postpartum period (106 days). The microscopic finding of the dissected coronary artery revealed two intimal tears in a section. The case showed that the dissecting intramural haematoma of the coronary artery is caused not only by the rupture of the vasa vasorum but also by the rupture of the intima.  相似文献   
148.
Distinctive blunt force injuries caused by a crescent wrench.   总被引:1,自引:0,他引:1  
  相似文献   
149.
150.
The purpose of this investigation was to identify inmate personal and demographic data that may be used to further define or profile persons with a greater likelihood of being at risk for serving a jail sentence. This study was explorative. The survey administration was similar in format to that conducted by the U.S. Department of Justice. Chaplains were used as survey proctors. Pilot studies were conducted to determine the suitability of survey content. Surveys consisted of 172 items. Subjects included four hundred inmates: males comprised 88.75 percent of the sample, Caucasians 58.25 percent, Blacks 37 percent, Hispanics 3.25 percent and other 1.5 percent of the sample. Respondents ranged in age from 15 to 64 years with an average age of 30.3 years. Less than two percent of the contacted inmates refused participation in the survey. Results are presented for demographic data, select legal/criminal data, select drug and alcohol use data, employment data, health, parent/family data, education data, social data, and “other”.  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