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   1118篇
  免费   40篇
各国政治   71篇
工人农民   40篇
世界政治   83篇
外交国际关系   92篇
法律   534篇
中国政治   8篇
政治理论   302篇
综合类   28篇
  2023年   7篇
  2020年   11篇
  2019年   14篇
  2018年   22篇
  2017年   32篇
  2016年   36篇
  2015年   20篇
  2014年   16篇
  2013年   189篇
  2012年   23篇
  2011年   37篇
  2010年   27篇
  2009年   27篇
  2008年   37篇
  2007年   36篇
  2006年   46篇
  2005年   47篇
  2004年   44篇
  2003年   46篇
  2002年   41篇
  2001年   20篇
  2000年   22篇
  1999年   24篇
  1998年   17篇
  1997年   19篇
  1996年   19篇
  1995年   16篇
  1994年   16篇
  1993年   17篇
  1992年   16篇
  1991年   12篇
  1990年   10篇
  1989年   13篇
  1988年   15篇
  1987年   13篇
  1986年   20篇
  1985年   9篇
  1984年   9篇
  1983年   14篇
  1982年   10篇
  1981年   9篇
  1980年   7篇
  1979年   10篇
  1978年   7篇
  1977年   7篇
  1975年   8篇
  1974年   6篇
  1973年   5篇
  1971年   5篇
  1969年   4篇
排序方式: 共有1158条查询结果,搜索用时 31 毫秒
991.
992.
Abstract: “Net debt” is considered an important measure of the financial strength of a government and is currently a required line item on the “statement of financial position” in Canadian government financial statements. In this article, the authors look at the emergence, evolution and entrenchment of net debt in the public accounts of the Government of Canada. They trace the history of this financial indicator through a study of archival data from the Province of Canada and the Government of Canada and interpret the data using Klaus Lüder's contingency model of public‐sector accounting innovations.  相似文献   
993.
This article discusses a study of the economic impact of Indonesia's KIK/KMKP programme of special credits for small‐scale enterprises. Our major focus is on how to measure economic impact. It discusses the concept of ‘impact’, the survey design, the statistical framework, and the practical problems of implementation, and briefly summarises the findings. We believe that our methodology generated reasonably reliable data and fundamentally sound estimates of the credit programme's direct impact on employment, output and income.  相似文献   
994.
995.
996.
997.
This article analyzes and compares the growth of Islamist movements and regime responses in the three core Maghrib states — Morocco, Algeria and Tunisia. In spite of the many points of commonality and their geographical proximity, the particular sociopolitical and historical circumstances of each of the three states have varied widely, producing a different state‐society/regime‐opposition dynamic in each case, resulting in very different political outcomes. Algeria has been, and remains, in many ways, sui generis in the Arab world. Consequently, even if the Islamists do eventually come to power there, one should avoid adopting any simplistic Islamic ‘domino theory’ for the region.  相似文献   
998.
A reversed phase gradient ultra performance liquid chromatography tandem mass spectrometry (UPLC/MS/MS) method has been developed for the analysis of smokeless powders. A total of 20 different components were separated by UPLC and detected by MS/MS in multiple reaction monitoring (MRM) mode. These compounds included diphenylamines, centralites, nitrotoluenes, nitroglycerin, and various phthalates. Simultaneous positive and negative electrospray ionization (ESI) was used along with negative atmospheric pressure chemical ionization (APCI) to detect all compounds in a single analysis. Analysis times were under 8 min with a gradient of 10–73% organic at a flow rate of 0.500 mL/min. With this method, ultraviolet and MRM limits of detection ranging from 0.08 to 2.6 ng and 0.4–64 ng injected were achieved. Commercially available smokeless powders were also extracted with methylene chloride and characterized using the developed UPLC/MS/MS method. The procedure permits the determination of compositional differences between different brands as well as lot‐to‐lot variations.  相似文献   
999.
1000.
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