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   72011篇
  免费   3009篇
  国内免费   5篇
各国政治   4500篇
工人农民   2956篇
世界政治   6130篇
外交国际关系   3866篇
法律   34934篇
中国共产党   35篇
中国政治   810篇
政治理论   20806篇
综合类   988篇
  2021年   423篇
  2020年   1174篇
  2019年   1540篇
  2018年   1721篇
  2017年   2013篇
  2016年   2209篇
  2015年   1842篇
  2014年   2112篇
  2013年   10554篇
  2012年   1708篇
  2011年   1873篇
  2010年   1888篇
  2009年   2128篇
  2008年   1905篇
  2007年   1912篇
  2006年   2047篇
  2005年   1934篇
  2004年   1799篇
  2003年   1637篇
  2002年   1648篇
  2001年   1788篇
  2000年   1508篇
  1999年   1358篇
  1998年   1148篇
  1997年   980篇
  1996年   969篇
  1995年   927篇
  1994年   942篇
  1993年   960篇
  1992年   1044篇
  1991年   1094篇
  1990年   1035篇
  1989年   1044篇
  1988年   1063篇
  1987年   1035篇
  1986年   1042篇
  1985年   1097篇
  1984年   977篇
  1983年   1020篇
  1982年   902篇
  1981年   866篇
  1980年   668篇
  1979年   713篇
  1978年   611篇
  1977年   543篇
  1976年   498篇
  1975年   447篇
  1974年   462篇
  1973年   448篇
  1972年   393篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
281.
The enzyme activity of phosphoglucomutase (PGM) has been investigated in red cell haemolysates from 142 individuals and compared to the sub-type as determined by isoelectric focusing. The 10 phenotypes showed significant differences in PGM-activity which indicates that there is a correlation between the level of activity and the isolelectric point of homozygotes. No indication of silent alleles or alleles with reduced activity was found in this collective.  相似文献   
282.
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   
283.
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   
284.
285.
286.
287.
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   
288.
Most studies that consider the factors influencing the decision to leave an abusive relationship rely on retrospective, self-report data. In addition to the biased samples that are frequently obtained in such investigations, the methodological shortcomings of survey research limit its explanatory power, particularly when applied to such sensitive topics as family violence. This report introduces an alternative method for studying the decision to leave an abusive relationship. Forty-five men and 68 women were studied using an experimental computer game of an abuse-like relationship. The tendency to leave this relationship was measured under four differing conditions of severity and frequency of abuse. A logit analysis revealed that the frequency of abuse was more consequential to women's decisions to leave, while severity of abuse was more salient for men. In addition, the hypothesized model, including frequency of abuse, severity of abuse, and locus of control, fits well for women but not for men. The implications of these findings, as well as the validity and future application of experimental games, are discussed.  相似文献   
289.
290.
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