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   26028篇
  免费   1522篇
  国内免费   5篇
各国政治   1032篇
工人农民   1028篇
世界政治   1838篇
外交国际关系   797篇
法律   17746篇
中国共产党   7篇
中国政治   224篇
政治理论   4647篇
综合类   236篇
  2020年   490篇
  2019年   543篇
  2018年   642篇
  2017年   759篇
  2016年   758篇
  2015年   636篇
  2014年   658篇
  2013年   2504篇
  2012年   667篇
  2011年   767篇
  2010年   841篇
  2009年   814篇
  2008年   728篇
  2007年   734篇
  2006年   786篇
  2005年   662篇
  2004年   641篇
  2003年   667篇
  2002年   583篇
  2001年   996篇
  2000年   806篇
  1999年   706篇
  1998年   368篇
  1997年   282篇
  1996年   286篇
  1995年   285篇
  1994年   322篇
  1993年   299篇
  1992年   507篇
  1991年   546篇
  1990年   510篇
  1989年   476篇
  1988年   488篇
  1987年   424篇
  1986年   490篇
  1985年   465篇
  1984年   413篇
  1983年   381篇
  1982年   308篇
  1981年   303篇
  1980年   241篇
  1979年   303篇
  1978年   210篇
  1977年   176篇
  1976年   156篇
  1975年   189篇
  1974年   191篇
  1973年   159篇
  1972年   145篇
  1971年   143篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
201.
We consider the problem of drawing inferences within a legal framework when a person is a suspect for two separate offences. Although we are primarily concerned with scientific evidence the issue inevitably arises as to how that evidence interacts with other, non-scientific evidence. We show that, in this particular context, the evidence can be conveniently classified into three categories that concern, respectively: the first crime only; the second crime only; and evidence that relates to similarities between the two crimes. Two case examples are considered and we consider DNA, fibres and eyewitness evidence. These are viewed from the perspective of a prosecutor who has to decide whether or not to charge a suspect with one or both crimes. Graphical sensivity analyses are presented which have features that are not intuitively obvious.  相似文献   
202.
In a case of suicidal application of electricity differences between the rectal temperature of the body and the suspected time of death were observed.In order to answer the question whether an electric current from hand to hand over >30 min led to a rise in body temperature FEM-based computer simulations and animal experiments were carried out. Both resulted in a warming of the soft parts in the arm without warming the body core. Thus a temperature-based estimation of the time since death can also be used in cases with electricity as the cause of death. Besides, in the animal experiment we found a spontaneous rise in the body core temperature even without application of electricity which may be a reason for the typical temperature plateau after death.  相似文献   
203.
204.
Interjurisdictional Competition and Regulatory Advantage   总被引:1,自引:0,他引:1  
As formal trade and investment barriers fall, government regulations– what once were domestic policy matters – becomeissues of international concern. International commerce createsthe potential for competition among regulatory jurisdictions.This article explains why there is variation in these regulatorytrends. Three general ‘trajectories’ are: (a) convergenceamong countries toward less stringent regulations in some cases,(b) convergence toward more stringent regulations in others,while in still other cases (c) differences persist among countries.I offer three (related) propositions which explain the differentregulatory trajectories: #1) Regulations on production processestend toward laxity; whereas product market-access regulationstend toward stringency. #2) Industrial structure affects thestrength of the process/market-access distinction. Powerfulfirms in concentrated markets facilitate collective action andregulatory capture. Dominant producers push for process andmarket-access regulations which reflect their interests, givingthem a competitive regulatory advantage in world markets. #3)The asset specificity of investments affects regulatory convergence.Low asset specificity leads to a competition-in-laxity; highmultinational asset specificity leads to convergence among jurisdictions(as firms seek to lower their transaction costs); and domesticasset specificity leads to differences among jurisdictions.Detailed case studies (on offshore banking, capital requirements,and infant formula) suggest the propositions are necessary tounderstand general outcomes, although not sufficient to fullyexplain individual cases.  相似文献   
205.
Forecasters often disagree on revenue predictions because of differing techniques. Some states, such as Utah, have turned to the use of survey research methods to avoid this dilemma. This article reviews many of the national forecasting models examining consumer sentiment currently in use. And it compares the Utah experience with surveys used in other states.  相似文献   
206.
207.
Presents the results of spectrophotometric and histologic examinations of subdural bleedings, meninges and brain matter in the acute period of a lethal craniocerebral injury. Discusses the possible use of a complex of histologic and biochemical studies in determination of the period elapsed since the injury.  相似文献   
208.
209.
The story of Al Capone's rise and fall as a Chicago gangster has always depended upon selective dissemination of federal agency records, particularly records of the Internal Revenue Service. Capone history, therefore, is state-sanctioned history. The IRS view of the Capone organization, and of the tax evasion conviction, cannot be easily challenged without access to the corpus of the IRS records. Unfortunately, these records remain sealed from public access, despite the fact that selective releases were made prior to 1977 to journalists, popular authors, film producers and historians. Continued secrecy over the Capone records perpetuates a state-sanctioned criminology of organized crime. Calder v. Internal Revenue Service 1 attempted without success to unlock the corpus of IRS-Capone records to investigate the state-sanctioned view.  相似文献   
210.
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