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   21845篇
  免费   609篇
各国政治   916篇
工人农民   855篇
世界政治   1833篇
外交国际关系   772篇
法律   13162篇
中国共产党   2篇
中国政治   124篇
政治理论   4601篇
综合类   189篇
  2020年   267篇
  2019年   338篇
  2018年   441篇
  2017年   483篇
  2016年   520篇
  2015年   346篇
  2014年   432篇
  2013年   2176篇
  2012年   524篇
  2011年   564篇
  2010年   443篇
  2009年   501篇
  2008年   581篇
  2007年   595篇
  2006年   559篇
  2005年   505篇
  2004年   524篇
  2003年   523篇
  2002年   462篇
  2001年   923篇
  2000年   835篇
  1999年   662篇
  1998年   353篇
  1997年   306篇
  1996年   246篇
  1995年   249篇
  1994年   282篇
  1993年   252篇
  1992年   432篇
  1991年   484篇
  1990年   434篇
  1989年   438篇
  1988年   407篇
  1987年   439篇
  1986年   415篇
  1985年   410篇
  1984年   363篇
  1983年   391篇
  1982年   302篇
  1981年   297篇
  1980年   208篇
  1979年   309篇
  1978年   201篇
  1977年   163篇
  1976年   148篇
  1975年   154篇
  1974年   174篇
  1973年   167篇
  1972年   141篇
  1971年   122篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
251.
The National Abortion Rights Action League (NARAL) and the Women's Legal Defense Fund (WLDF) co-authored an "amicus curiae" brief in "Webster." The brief was written for 77 organizations who believe in equality of women. The brief said that constitutional protection of a woman's right to choose is guaranteed by the right to privacy. The brief said that if abortions were illegal, women would not be able to take place in society equally with men. Liberty would be taken away from women. If the state interferes with abortion, the principle of bodily integrity is violated. In "Winston v. Lee," the Supreme Court found that the state could not compel a criminal to undergo an invasive surgical procedure to retrieve a bullet necessary for the state to prosecute with. 1 in 4 women have a cesarean section, which requires a larger incision in the abdomen, and has many risks. Bearing and raising children often puts a damper on women's employment opportunities. Therefore, if the Supreme Court denied women the right to bear children when and where they wanted, women would not have the right to plan their futures. If the Supreme Court were to agree that "interest in potential life outweighs" a woman's tight to procreate autonomously, states could declare all abortions illegal, investigate them to see if they were induced on purpose, and murder women who induced them. Contraceptive devices could be declared illegal. Laws could be used to force women to submit to cesarean sections and other fetal surgery. Pre-viability abortion restrictions should be rejected because they have old-fashioned notions of women's role in society. They reinforce stereotypes. Missouri's law stresses aiding "potential," rather than actual life.  相似文献   
252.
The authors present a historical overview of urbanization in Venezuela. The impact of the oil economy on population change and spatial distribution is emphasized. A typology of cities based on socioeconomic function and on a demographic classification of urban centers is devised. Future trends in urbanization are also considered. (SUMMARY IN ENG)  相似文献   
253.
254.
255.
There is always a temptation to suppose that one's own problems (whether personal or national) are unique. They rarely are. The "problem" of the elderly is no exception and so there is no particular point in looking to the specific characteristics of one's own health, social service, and social security systems for causes. There is, however, every reason to be looking at them for the consequences. They can also exacerbate the causes. In this paper we sketch the principal features (economic, social, and demographic) that have contributed to the "problem" of the elderly in Europe and then outline the main intellectual issues that need to be explored and resolved. That sounds a bit pompous but, if one is to avoid an intellectual morass consisting of the various assertions about needs, obligations, and so on that emanate from rival concerned parties and various professional interests on the one hand, and simplistic political slogans whose only virtue is that they cut the Gordian Knot (but provide no real enlightenment) on the other, then we need to be doing just this. We shall take a few things for granted: that cost-containment is not the be-all-and-end-all of policy; that value for money depends equally on what you get as on what you spend; that overall expenditure per head is mainly determined by income per head (though some countries have managed to get and stay below the regression line); and that it "ain't so" that all one needs to do is to "leave it to the market." To have justified each of these would have taken too much space so we can only assert them and trust that, in swallowing these camels, you won't strain at the gnats to come.  相似文献   
256.
257.
258.
259.
A "realistic" prior probability is always based on case experience (Akten-a-priori). In serological opinions pertaining to parentage, the realistic prior probability is only one piece of information in the whole body of evidence before the judge and does not have any special significance per se. There is no such thing as a "neutral" prior probability. It either implies "ignorance," in which case it cannot be "information," or it must be taken in connection with the utility principle, in which case it is not a "probability." The utility principle is defined in law and cannot be expressed in figures. The utility principle takes effect only when the judge reaches a decision (on the basis of all the evidence before him). It determines the relative importance of the participant's objects of legal protection which are at issue in the case. The expert is bound to apply a neutral utility component, i.e., in a two-hypothesis case (the normal situation) the significance of both the null and the counter hypothesis must carry the same weight. A null and/or a counter hypothesis can combine several single hypotheses; the mean value of their frequencies is taken. As a rule, one should avoid using a "prior case probability" ("Akten-a-priori") when calculating a W value. An "expectation of error" should be as realistic as possible and hence be obtained using a "prior case probability."  相似文献   
260.
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