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   16471篇
  免费   691篇
各国政治   967篇
工人农民   491篇
世界政治   1043篇
外交国际关系   650篇
法律   10710篇
中国共产党   8篇
中国政治   68篇
政治理论   3092篇
综合类   133篇
  2020年   273篇
  2019年   310篇
  2018年   444篇
  2017年   469篇
  2016年   505篇
  2015年   424篇
  2014年   387篇
  2013年   1768篇
  2012年   497篇
  2011年   474篇
  2010年   427篇
  2009年   464篇
  2008年   487篇
  2007年   502篇
  2006年   497篇
  2005年   376篇
  2004年   391篇
  2003年   355篇
  2002年   368篇
  2001年   612篇
  2000年   557篇
  1999年   447篇
  1998年   193篇
  1997年   170篇
  1996年   159篇
  1995年   162篇
  1994年   177篇
  1993年   165篇
  1992年   294篇
  1991年   327篇
  1990年   292篇
  1989年   307篇
  1988年   265篇
  1987年   277篇
  1986年   284篇
  1985年   261篇
  1984年   218篇
  1983年   246篇
  1982年   163篇
  1981年   156篇
  1980年   113篇
  1979年   216篇
  1978年   139篇
  1977年   118篇
  1976年   102篇
  1975年   112篇
  1974年   133篇
  1973年   129篇
  1972年   106篇
  1971年   95篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
31.
The DNA commission of the International Society of Forensic Genetics (ISFG) was convened at the 21st congress of the International Society for Forensic Genetics held between 13 and 17 September in the Azores, Portugal. The purpose of the group was to agree on guidelines to encourage best practice that can be universally applied to assist with mixture interpretation. In addition the commission was tasked to provide guidance on low copy number (LCN) reporting. Our discussions have highlighted a significant need for continuing education and research into this area. We have attempted to present a consensus from experts but to be practical we do not claim to have conveyed a clear vision in every respect in this difficult subject. For this reason, we propose to allow a period of time for feedback and reflection by the scientific community. Then the DNA commission will meet again to consider further recommendations.  相似文献   
32.
33.
He is author of many works about social class, including The Protestant Establishment Revisitedand Philadelphia Gentlemen,both published by Transaction Publishers.  相似文献   
34.
35.
36.
This article examines constraints in development bureaucracies in intensifying the use of microcomputers as they move beyond processing applications to analysing applications. The work is based on the experience of several ministries of the Government of Kenya. Processing applications involve throughput of data and are relatively simple. Analysing applications, in contrast, are more complex and include data assembly, sensitivity analysis, and modelling. The article argues that processing applications are more compatible with the administrative cultures, bureaucratic functions, personnel skill levels and organizational structures of development bureaucracies. Analysing applications are less compatible because they require a level of training and motivation uncommon in development bureaucracies. Analysing applications are further thwarted by constraints in the supply of relevant information and the lack of demand for analysis by decision-makers. A four-cell matrix is developed which explains these constraints. The article concludes with several recommendations for encouraging microcomputer-based analysis, but cautions that processing applications will continue to dominate for the foreseeable future.  相似文献   
37.
38.
Protected ownership and freedom of contracts are two basic parts of the institutional framework of successful countries according to Douglass North, winner of the Nobel Prize in 1993. The incentives to make long-term investments are strengthened if ownership rights are protected and freedom of contracts is a basic element in the process of efficient allocation of scarce resources. An important engine in prosperous societies is the family firm. Most companies in these societies can be classified as family firms and a major part of GDP is produced by family businesses. Consequently, how ownership is protected in family firms is an important issue.Three important factors of private ownership of property are the rights to determine use of owned assets, the return generated from them and to transfer the assets at mutually agreeable terms to a new owner(s).The incentives of a founder entrepreneur to put efforts into the establishment of a firm are determined by all the three factors. We will here pay special attention to the third factor, transfer of the ownership of the firm. The founder often places contractual restrictions on such transfers to ensure that the structure of ownership is stable and that the firm stays in the family. The possibility to do so is part of the freedom of contracts and is associated with the extent of ownership held as well as the incentives to invest in new businesses.This paper is primarily about how protection of family ownership can be achieved from a legal point of view and discusses the reasons to enforce these legal relationships in the future for second, third, fourth etc. generations of family owners.  相似文献   
39.
40.
Klagen gegen einen internationalen Sportverband, die auf Feststellung der Unwirksamkeit einer Sperre eines bei einem nationalen Sportverband besch?ftigten Trainers von Wettbewerben dieses Sportverbandes und auf Unterlassung von Handlungen, die eine Akkreditierung verhindern bzw erschweren, gerichtet sind, unterliegen der ausschlie?lichen inl?ndischen Gerichtsbarkeit des Sitzstaates; eine Verbindung solcher Klagen mit einer gegen den nationalen Verband gerichteten gleichartigen Klage ist daher unzul?ssig. – Eine damit zusammenh?ngende Schadenersatzklage gegen den internationalen Verband steht auch nicht in dem von Art 6 Nr 1 LGVü geforderten Zusammenhang mit einer Klage gegen den nationalen Verband wegen Aufl?sung des Trainervertrages aufgrund der Sperre.  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