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   67903篇
  免费   2994篇
各国政治   4427篇
工人农民   2844篇
世界政治   5877篇
外交国际关系   3779篇
法律   31703篇
中国共产党   12篇
中国政治   752篇
政治理论   20551篇
综合类   952篇
  2021年   401篇
  2020年   1154篇
  2019年   1508篇
  2018年   1651篇
  2017年   1949篇
  2016年   2154篇
  2015年   1813篇
  2014年   2084篇
  2013年   10449篇
  2012年   1601篇
  2011年   1697篇
  2010年   1810篇
  2009年   2052篇
  2008年   1743篇
  2007年   1699篇
  2006年   1875篇
  2005年   1764篇
  2004年   1661篇
  2003年   1450篇
  2002年   1507篇
  2001年   1452篇
  2000年   1298篇
  1999年   1152篇
  1998年   1097篇
  1997年   977篇
  1996年   959篇
  1995年   911篇
  1994年   910篇
  1993年   941篇
  1992年   958篇
  1991年   996篇
  1990年   924篇
  1989年   966篇
  1988年   947篇
  1987年   992篇
  1986年   950篇
  1985年   1021篇
  1984年   925篇
  1983年   986篇
  1982年   885篇
  1981年   834篇
  1980年   649篇
  1979年   683篇
  1978年   589篇
  1977年   536篇
  1976年   485篇
  1975年   411篇
  1974年   411篇
  1973年   432篇
  1972年   377篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
993.
994.
In 1973 the United States Supreme Court ruled that abortion could be had practically on request during the first 3 months of pregnancy. This article discusses whether the decision led to more public support for that position, and where in the U.S. the increase in support has been most drastic. The most recent public opinion polls indicate about 60% public support legalized abortion, while it was only 45% before 1973. Support has also increased even if pregnancy is not judged to be detrimental to the mother's health, or if it is not the result of rape and/or incest, but even if it is simply requested for economic or purely personal reasons. People under 30, with college education, men and Protestants, seem to be the staunchest supporters of abortion on demand. There has also been an increase in the number of Catholics supporting abortion. Support for abortion increased in most states between 1969-1973, particularly in the West and in the Northwest. The fight to deny federal funds for abortion is still raging in Congress; some studies indicate that the religion of the legislators is the most powerful predictor of voting on abortion, and that the decision is a very personal one, and not easily altered by the lobbying of groups on either side.  相似文献   
995.
996.
997.
The results of a study of the polymorphism of the sixth component of human complement by means of isoelectric focusing in polyacrylamide gels with subsequent C-dependent lysis in an agarose overlay containing C6 deficient rabbit serum are reported. The allele frequencies obtained (C6A = 0.613, C6B = 0.379, C6R = 0.008) are in good agreement with those previously published. The mode of inheritance in 47 families with 173 offspring as well as 26 mother-child combinations is in agreement with a formal genetical model: "C6A, C6B, C6A1 and C6B1 at an autosomal locus". The inclusion of this system into a blood group expertise in Germany can be recommended.  相似文献   
998.
999.
The paper shows that if the class of admissible preference orderings is restricted in a manner appropriate for economic and political models, then Arrow's impossibility theorem for social welfare functions continues to be valid. Specifically if the space of alternatives is R + n , n ≥ 3, where each dimension represents a different public good and if each person's preferences are restricted to be convex, continuous, and strictly monotonic, then no social welfare function exists that satisfies unanimity, independence of irrelevant alternatives, and nondictatorship.  相似文献   
1000.
In this paper two arguments are advanced with regard to parental influence on adolescent political attitudes. First, variables like parental affect, which are of considerable theoretical interest to social psychologists, are of relatively little interest to the system-level concerns of political scientists because of their lack of variance. Second, the additive issue salience/perceptual accuracy model I proposed (1974) is a better fit to the data than a multiplicative cue-giving/parental affect model proposed in this journal by Cundy (1979). The fit of the two models is tested with the Jennings (1965) socialization data.Cundy, D. T. The dynamics of interpersonal attitudinal influence.Political Behavior, 1979,1, 269–284.  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