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   794篇
  免费   32篇
各国政治   33篇
工人农民   26篇
世界政治   71篇
外交国际关系   45篇
法律   465篇
中国共产党   2篇
中国政治   11篇
政治理论   135篇
综合类   38篇
  2023年   7篇
  2022年   8篇
  2021年   6篇
  2020年   24篇
  2019年   21篇
  2018年   25篇
  2017年   25篇
  2016年   32篇
  2015年   23篇
  2014年   32篇
  2013年   100篇
  2012年   37篇
  2011年   34篇
  2010年   37篇
  2009年   32篇
  2008年   35篇
  2007年   24篇
  2006年   29篇
  2005年   41篇
  2004年   32篇
  2003年   28篇
  2002年   24篇
  2001年   27篇
  2000年   25篇
  1999年   10篇
  1998年   16篇
  1997年   3篇
  1996年   7篇
  1995年   10篇
  1994年   4篇
  1993年   3篇
  1992年   2篇
  1991年   3篇
  1990年   5篇
  1989年   7篇
  1988年   7篇
  1987年   2篇
  1986年   9篇
  1983年   6篇
  1982年   3篇
  1979年   1篇
  1978年   2篇
  1977年   1篇
  1976年   2篇
  1974年   4篇
  1973年   1篇
  1972年   2篇
  1969年   1篇
  1967年   3篇
  1963年   1篇
排序方式: 共有826条查询结果,搜索用时 0 毫秒
801.
“民主和平论”认为 :民主国家间没有或很少发生战争 ,“非民主国家”是战争的根源 ,扩大民主是维护和平的必然要求。“民主和平论”并不符合历史事实 ,它是推行人权外交的新干涉主义的理论基础。民主与和平之间的关系是复杂的 :国际社会的和平不仅需要一国内部的民主 ,更需要国际生活中的民主 ;民主只是影响国际和平众多原因中的一个 ,它对和平的影响是有限的 ;“民主和平论”主张建立的和平本质上是建立在不合理的国际政治、经济旧秩序基础之上的西方国家之间的局部和平 ,世界总体和平的巩固和公正、合理的国际新秩序的建立呼唤新的民主  相似文献   
802.
803.
804.
Recent trends in state tax revenue reveal that overall reliance of states on taxes have been declining for the last 43 years. Faced with reduction in tax revenues, states have restructured their tax systems to meet public demand for more services. State income taxes are the one type of tax that has risen consistently. What causes state policy makers to rely on this type of tax? This research addresses this question.  相似文献   
805.
Smallholder drip irrigation is widely held as a promising technology for water saving, poverty reduction and food security, despite a dearth of evidence of benefits to farmers, especially in sub-Saharan Africa. In this article, we document three development programmes promoting drip irrigation in Burkina Faso. Using actor network theory and insights from critical development studies, we show that development brokers play a key role in aligning interests, shaping activities and interpreting project outcomes. They are accountable towards each other rather than to farmers. This means that success is interpreted through development agencies lenses and with the intention of continuing involvement in future projects. Small farmers’ interests and uptake of the technology are of secondary importance.  相似文献   
806.
Having a bank account is widely regarded as the first step toward financial inclusion of the poor. Funds deposited in a bank account are also observed to lead to higher savings. Exploiting special features of the National Rural Employment Guarantee Scheme (NREGS) of India, our estimates indicate that households that receive NREGS wages through a bank do not appear to spend more on education than other comparable households that receive cash payment. The district level intention to treat specification produces similar results. The findings suggest that the rural poor face constraints in accessing their bank accounts due to financial illiteracy and other problems.  相似文献   
807.
808.
Gastromalacia is the acute autolytic erosion of the gastric wall. It generally occurs postmortem, and it appears as a slimy brownish black region of the wall which occurs principally in the gastric fundus. A 59‐year‐old woman died in the Emergency Department following a 2‐day period of mild abdominal pain, vomiting, and diarrhea. A forensic autopsy was performed which revealed a rupture of the gastric fundus that had caused leakage of gastric content into the abdominal cavity. There was no macroscopic evidence of peritonitis, and the stomach wall adjacent to the rupture site showed marked thinning. The gross appearance was typical of gastromalacia. In contrast, histological observations revealed the presence of an ulcer at the site of perforation and a severe acute inflammatory reaction indicating a robust reaction with an antemortem rupture.  相似文献   
809.
In further work investigating the intriguing application of diacetylene copolymers in fingermark detection, methods were developed to control (inhibit or enhance) the diacetylene polymerization reaction in fingermarks treated with a mixture of the monomers 2,4‐hexadiyne‐1,6‐bis‐(phenylurethane) (HDDPU) and 2,4‐hexadiyne‐1,6‐bis(p‐chlorophenylurethane) (HDDCPU) in acetone solution. These methods included the use of a humidity chamber to reduce the amount of background development while promoting development on the fingermark, subjecting developed fingermarks to freezing temperatures and using a solvent to remove unreacted monomer in order to inhibit the polymerization reaction. Developed fingermarks were enhanced by conventional lighting (white light, filtered light) and fast Raman mapping, which was shown to be advantageous over FTIR imaging. This study also demonstrated the applicability of diacetylene copolymer solutions in the covert detection of fingermarks on difficult surfaces. Furthermore, fingermarks were successfully developed with good ridge detail on pig skin (used as a model for human skin, a notoriously difficult surface on which to develop fingermarks).  相似文献   
810.
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