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   68564篇
  免费   3332篇
各国政治   4592篇
工人农民   2879篇
世界政治   6065篇
外交国际关系   3900篇
法律   31594篇
中国共产党   9篇
中国政治   759篇
政治理论   21141篇
综合类   957篇
  2021年   410篇
  2020年   1173篇
  2019年   1543篇
  2018年   1701篇
  2017年   1995篇
  2016年   2196篇
  2015年   1852篇
  2014年   2123篇
  2013年   10761篇
  2012年   1619篇
  2011年   1722篇
  2010年   1853篇
  2009年   2101篇
  2008年   1765篇
  2007年   1745篇
  2006年   1897篇
  2005年   1808篇
  2004年   1693篇
  2003年   1494篇
  2002年   1541篇
  2001年   1445篇
  2000年   1263篇
  1999年   1141篇
  1998年   1120篇
  1997年   987篇
  1996年   945篇
  1995年   927篇
  1994年   912篇
  1993年   950篇
  1992年   928篇
  1991年   965篇
  1990年   913篇
  1989年   959篇
  1988年   957篇
  1987年   980篇
  1986年   950篇
  1985年   1031篇
  1984年   918篇
  1983年   987篇
  1982年   905篇
  1981年   861篇
  1980年   662篇
  1979年   693篇
  1978年   602篇
  1977年   544篇
  1976年   496篇
  1975年   417篇
  1974年   419篇
  1973年   432篇
  1972年   372篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
331.
332.
333.
334.
The Tax Reform Act of 1986 rewrote the federal income tax code, bringing it closer to policy professionals' vision of what constitutes an equitable and efficient income tax. Research on tax compliance suggests the law might have affected taxpayer compliance in three ways: by reducing opportunities to overstate deductions, by changing perceptions of fairness, and by altering tax liabilities. Changes in taxpayer perceptions, attitudes, and noncompliance intentions were examined in three bodies of survey data, each containing pre-and post-reform data from independent samples of the same population. The results show an improved normative climate for taxpayer compliance and point to both the feasibility and the importance of examining the effects of substantive tax policies on taxpayer perceptions, attitudes, and behavioral intentions.  相似文献   
335.
Lancaster  Thomas D. 《Publius》1997,27(4):115-134
Acknowledging Spain's diversity, this article assesses the impactof nationalism, regionalism, and other factors on public opinionabout the country's young democratic institutions. Utilizingsurvey data, the analysis focuses on national and regional variationsin public preferences for central state institutions and federalistor other designs for state-regional relations. It concludesthat a strong base of support exists for the current democraticsystem and the institutions through which it is implemented.Nevertheless, some doubts remain about the basic state structureof central-regional relations.  相似文献   
336.
337.
Correlation between plasma and bone marrow tricyclic antidepressants has not been studied before. Two groups of rabbits were given 10 and 20 mg of desipramine/kg body weight, respectively. Desipramine was administered to the animals once daily by mouth for 5 days. On the fifth day the animals were sacrificed and blood and bone marrow samples were collected and analyzed using a high performance liquid chromatographic (HPLC) method. Data showed that a correlation exists between bone marrow and blood desipramine. The bone marrow desipramine concentration increased as its blood levels increased. The average ratio of bone marrow to blood desipramine +/- S.D. (standard deviation) in both dosage groups was 37.2 +/- 4.46 with a range of 30.99-44.82. This investigation is promising and shows that bone marrow could be used as an alternative tissue in the absence of a suitable blood sample.  相似文献   
338.
339.
340.
This paper addresses two neglected areas in the research on the relationship between family violence and violence outside the home: violence other than parent-child abuse and the effect of gender. Specifically, we consider both parental and sibling violence as independent variables, nonfamily violence as the dependent variable, and gender as the specification variable. The data were collected from a sample of 306 students in Introductory Sociology and Social Problems classes. The finding of particular importance is that the interaction between the gender of both the aggressor and the victim has a significant effect on the relationship between violence within the home and nonfamily violence.  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