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   13862篇
  免费   437篇
各国政治   778篇
工人农民   512篇
世界政治   1126篇
外交国际关系   689篇
法律   7447篇
中国政治   93篇
政治理论   3514篇
综合类   140篇
  2021年   90篇
  2020年   174篇
  2019年   239篇
  2018年   382篇
  2017年   334篇
  2016年   411篇
  2015年   234篇
  2014年   278篇
  2013年   1722篇
  2012年   427篇
  2011年   408篇
  2010年   320篇
  2009年   343篇
  2008年   319篇
  2007年   369篇
  2006年   374篇
  2005年   730篇
  2004年   465篇
  2003年   378篇
  2002年   373篇
  2001年   346篇
  2000年   288篇
  1999年   259篇
  1998年   182篇
  1997年   181篇
  1996年   158篇
  1995年   162篇
  1994年   162篇
  1993年   154篇
  1992年   215篇
  1991年   255篇
  1990年   212篇
  1989年   235篇
  1988年   215篇
  1987年   236篇
  1986年   230篇
  1985年   223篇
  1984年   193篇
  1983年   209篇
  1982年   145篇
  1981年   144篇
  1980年   128篇
  1979年   137篇
  1978年   113篇
  1977年   91篇
  1976年   97篇
  1975年   87篇
  1974年   106篇
  1973年   93篇
  1972年   84篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
Fibres used in forensic casework suffer from a disadvantage common to other forms of trace evidence--it is not possible to state with absolute certainty that they originate from a specific source. Target fibre studies, population studies and research on 'blocks of colour' have effectively demonstrated the polymorphism of textile fibres (particularly man-made ones) and have shown that when a fibre is believed to have a specific putative source, the chance that it has originated from a different source purely by coincidence is extremely remote. A study by Houck MM (Houck MM, Inter-comparison of unrelated fibre evidence. Forensic Science International 2003; 135: 146-149) has shown that no coincidental matching fibres were recovered from items of clothing examined in 20 unrelated crimes. The study involved over two million comparisons. This work goes a step further, and using the example of blue polyester fibres shows that even within a very narrow segment of the whole general fibre population, many examples of a specific colour/type of man-made fibre taken from random sources can be compared and the chance of any two being the same is very low. These studies should help to show the specificity and value of transferred fibres in providing forensic evidence.  相似文献   
22.
23.
演进中的亚洲地区体系   总被引:2,自引:0,他引:2  
东亚合作更多地表现为一种地区多边合作的过程。作为东亚的一个成员,和平发展的中国无疑是东亚区域合作最重要的动力源之一。从地缘上看,美国不属于东亚范畴。但基于历史原因和美国独特的地位,东亚合作进程又不可能排除美国的影响,甚至需要美国建设性的参与。因此,东亚合作一方面是一个内部一体化的过程,另一方面也涉及到一个对外部开放的问题。如何评估东亚合作进程中的中国的作用、美国对东亚合作进程的影响以及东亚合作背景下中美关系的前景等已经成为学界研究的一个热点。为此,中国国际关系学会、外交学院、美国乔治.华盛顿大学联合举办了“东亚地区合作与中美关系”国际研讨会(2005年11月),中美双方学者就此展开坦诚的对话交流。在会议讨论的基础上,我刊以笔谈形式整理刊发部分学者的观点,以飨读者。  相似文献   
24.
Legal context: The relatively informal agreements setting up the TrilateralCooperation (TC) among the world's three most important patentoffices are contrasted with formal multinational treaties suchas the Patent Law Treaty and the abortive Substantive PatentLaw Treaty. Key points: After its inception in 1983, the TC concentrated initially ondeveloping and implementing standards for electronic storageand retrieval of prior art documents, and facilitation of searching.This was later extended to electronic sharing of priority documentsand to standardization and searching of DNA sequence databases.More recently emphasis has been placed on harmonization of searchingand examination procedures, and working groups have comparedthe approaches of the Trilateral Offices (TOs) to the patentabilityof claims in areas of new technology. Encouragingly, the resultsare usually the same, although the specific objections raisedmay differ. The ultimate goal is to reach a situation in whicha claim allowed by one TO would be accepted by the others withoutfurther examination. Practical significance: The TC has already facilitated search and examination, leadingto lower costs and shorter pendency times than would otherwisebe the case. Further progress depends on harmonization of substantivepatent law, which in turn depends on the willingness of theUSA to accept a first-to-file system.  相似文献   
25.
26.
27.
Divorce, although a statistical norm, is a developmental trauma to the children involved. This article looks at the two-camp emotional environment of a divorcing family and its effect on the formation of a child's identity. By examining developmental ages, chosen according to divorce research, the author attempts to show how the interspouse emotional cathexes negatively affect a child's sense of self in ways specific to the child's age at the divorce.  相似文献   
28.
There is an argument in academic circles that the implied dutyof mutual trust and confidence will evolve to form an all-embracingsuper-principle under which each of the more ‘traditional’implied duties will rest, including the employer’s impliedduty to exercise reasonable care for the welfare and well beingof the employee. The theme of this article is that, on balance,there is no evidence for the emergence of the implied duty ofmutual trust and confidence as a super-principle. If anything,the recent trends in the case law emphasise the distinctivenessof the employer’s duties to exercise reasonable care andtrust and confidence. The article’s aim was to demonstratethat both duties are separate, free-standing duties, sittingon an equal plane in terms of importance. To rationalise one,or all of the implied duties (i.e. the duty to exercise reasonablecare and/or all of the other ‘traditional duties’),as one of the means by which the super-principle of trust andconfidence is, or may be expressed, is to a large extent, aspirational.  相似文献   
29.
Jorge Sanjinés' 1960s films Revolución and Ukamau challenge the class and ethnic hierarchies of Bolivian society by casting the proletarian and indigenous masses as revolutionary liberators. The new national imaginary they evoke is tightly bound to the experimental cinematic techniques they employ, since their rejection of rationalist, realist aesthetics signals a partial undermining of the linear time of the modern nation. Ukamau both recalls and resists previous Bolivian indigenismo, which sought to co‐opt the Indian into a national mestizo consciousness. Its exoticist portrayal of the Indian ultimately limits its political effectiveness, but textual and contextual analyses show subversive Indian agency leaking through.  相似文献   
30.
This review chronicles the characteristics of deliberate and accidental mass poisonings that occurred in World Wars I and II, in Bhopal, and in other historical cases up to and including modern wars. It also considers approaches to the investigation of such cases from the medicolegal as well as general standpoints.  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