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   3621篇
  免费   90篇
各国政治   254篇
工人农民   135篇
世界政治   323篇
外交国际关系   197篇
法律   1538篇
中国政治   15篇
政治理论   1206篇
综合类   43篇
  2023年   14篇
  2020年   50篇
  2019年   51篇
  2018年   71篇
  2017年   77篇
  2016年   104篇
  2015年   59篇
  2014年   80篇
  2013年   594篇
  2012年   75篇
  2011年   98篇
  2010年   93篇
  2009年   91篇
  2008年   107篇
  2007年   120篇
  2006年   101篇
  2005年   98篇
  2004年   106篇
  2003年   112篇
  2002年   156篇
  2001年   83篇
  2000年   83篇
  1999年   86篇
  1998年   67篇
  1997年   80篇
  1996年   58篇
  1995年   46篇
  1994年   39篇
  1993年   52篇
  1992年   56篇
  1991年   60篇
  1990年   43篇
  1989年   55篇
  1988年   45篇
  1987年   46篇
  1986年   56篇
  1985年   54篇
  1984年   33篇
  1983年   59篇
  1982年   45篇
  1981年   32篇
  1980年   28篇
  1979年   25篇
  1978年   26篇
  1977年   22篇
  1976年   26篇
  1975年   19篇
  1974年   28篇
  1973年   14篇
  1971年   14篇
排序方式: 共有3711条查询结果,搜索用时 15 毫秒
231.
232.
Lacayo R 《Time》2003,162(10):56-59
  相似文献   
233.
  This paper places the contemporary study of regionalism in historical context. It argues that the study of regionalism has occurred in two waves. The first gathered pace as a sub-field of International Relations from the late 1950s and the second emerged in the context of the globalisation of the late 1980s and the 1990s. RID="*" ID="*" This paper, originally presented as a lecture to the Asia Europe Foundation University, 7th Summer School, Barcelona: November 11, 2002, represents an abbreviated and revised version of Shaun Breslin and Richard Higgott (2000) Studying Regions: Learning from the Old Constructing the New, New Political Economy 5 (3): 333–352. Permission of the Editors of New Political Economy to publish in this form is gratefully acknowledged. The support of the Economic and Social Research Council in the writing of this paper is also gratefully acknowledged.  相似文献   
234.
The body of a 44-year-old scuba diver was examined using postmortem multislice computed tomography (MSCT) and magnetic resonance imaging (MRI), and findings were verified by subsequent autopsy. The goal was to find out whether the important pathomorphological findings for the reconstruction of events and the identification of cause and manner of death could be identified using modem digital cross-sectioning techniques. The findings of a massive vital decompression with pulmonary barotrauma and lethal gas embolism were identified in the radiological images. MSCT and MRI were superior to autopsy in the demonstration of the extent and distribution of gas accumulation in intraparenchymal blood vessels of internal organs as well as in areas of the body inaccessible by standard autopsy.  相似文献   
235.
This paper discusses results of a supercritical fluid extraction-gas chromatography/mass spectrometry (SFE-GC/MS) study of small samples ( 100 microg to 1 mg) of human scalp hair. The method offers a number of benefits including greater sensitivity than liquid extraction methods because the entire extractable mass is transferred to the analytical system, compared with only a few percent from a conventional liquid extraction/injection. The project's goals were to determine if SFE-GC/MS analyses of the surface-extractable components of an individual's hair yield consistent chemical profiles and to investigate if the profiles are sufficiently different to distinguish them from those of other individuals. In addition, the mtDNA sequences from ten of the same individuals used in the SFE-GC/MS study from four family units were determined, and, while the families were distinguishable, the maternal relations yielded identical sequences. In tandem, SFE-GC/MS and mtDNA techniques may provide valuable complementary data from forensic hair samples.  相似文献   
236.
237.
This research reports on public opinion surveys on intergovernmentaland federal issues conducted in Canada, Mexico, and the UnitedStates in March and April 2003. In all three countries, respondentsmost often see their federal government as being the least effective,least efficient, and least trustworthy. Respondents from Canadaappear least supportive of their federal government and mostsupportive of their local governments; those from Mexico appearmost supportive of their state governments; respondents fromthe United States appear more "balanced" in their support ofthe various orders of government. Also, far greater regionaldifferences in opinion exist in Canada than in Mexico or theUnited States. Support for more decentralized federalism isfound to be strong in all these federal countries. This researchalso updates long-term trend data for the United States. Comparedwith respondents from previous years, U.S. respondents in 2003showed a measurable uplick in support for the federal government,compared with state and local governments. This support seemsto be a carryover from the terrorist attacks of 11 September2001.  相似文献   
238.
Montgomery  Michael R.  Bean  Richard 《Public Choice》1999,99(3-4):403-437
Two opposing models of public-goods undersupply are those of “market failure” and “government failure”. Empirical work on the relative explanatory power of these two frameworks has been limited by the scarcity of acceptable data. The case of climate-controlled walkways in major urban cores is a rare instance where such difficulties can be overcome. We investigate the supply of CCWs in 55 large city-cores in North America. We find that (1) CCW networks are well-supplied by market forces, when (2) such forces are not frustrated by government policy. We also find evidence that (3) rules-based regimes dominate discretion-based regimes. These results are consistent with the position that the “government-failure” paradigm is a viable alternative to the traditional “market failure” paradigm.  相似文献   
239.
240.
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