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   22634篇
  免费   1373篇
各国政治   1143篇
工人农民   951篇
世界政治   1729篇
外交国际关系   882篇
法律   14286篇
中国共产党   2篇
中国政治   135篇
政治理论   4716篇
综合类   163篇
  2023年   100篇
  2021年   106篇
  2020年   492篇
  2019年   536篇
  2018年   686篇
  2017年   704篇
  2016年   801篇
  2015年   597篇
  2014年   659篇
  2013年   2687篇
  2012年   617篇
  2011年   665篇
  2010年   649篇
  2009年   678篇
  2008年   679篇
  2007年   724篇
  2006年   692篇
  2005年   586篇
  2004年   608篇
  2003年   511篇
  2002年   567篇
  2001年   769篇
  2000年   709篇
  1999年   566篇
  1998年   356篇
  1997年   262篇
  1996年   295篇
  1995年   262篇
  1994年   241篇
  1993年   254篇
  1992年   373篇
  1991年   394篇
  1990年   369篇
  1989年   338篇
  1988年   370篇
  1987年   338篇
  1986年   397篇
  1985年   363篇
  1984年   309篇
  1983年   288篇
  1982年   239篇
  1981年   199篇
  1980年   186篇
  1979年   260篇
  1978年   159篇
  1977年   133篇
  1975年   119篇
  1974年   145篇
  1973年   110篇
  1972年   100篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
111.
112.
113.
De Vault  James M. 《Public Choice》2002,110(1-2):1-22
This study examines the unfair trade decisions of the InternationalTrade Commission (ITC) and how they have been affected by Congress.It begins by identifying the means Congress can use to influenceITC decisions and then estimates both the extent to which thesemeans have been used and the extent to which they have shaped theITC's behavior. The study reaches two conclusions. First, Congresshas tried to shape the ITC's behavior, but it has not tried tomicromanage this behavior. Second, while the ITC's behavior hasbeen influenced by Congress, congressional influence is not asimportant as other factors, such as statutory criteria.  相似文献   
114.
115.
A simple and rapid method is described for processing organ and water samples for the identification of diatoms so that they can be studied and recorded for taxonomic and diagnostic purposes. Samples are treated with concentrated nitric acid; the fluid obtained is centrifuged, and its sediment is dried, coated, and examined under the scanning electron microscope. The method does not alter the morphology of diatoms and allows the study of freshwater and seawater species present in the organs of bodies found in the water, making possible the diagnosis of drowning under specific conditions.  相似文献   
116.
117.
For much of the nineteenth century, Canadian education-related international activities resided outside the realm of traditional diplomacy. This situation was exacerbated by Canada's colonial link with Great Britain. Obstacles that prevented educationalists from playing a more substantive role in diplomacy were local, imperial, and ecclesiastical in origin. Educational activities were also a tool in the service of governments in the era between the zenith of British Imperialism in the 1890s and the founding of the United Nations in 1945. In the post-1945 era there was greater collaboration between the federal Ministry of External Affairs and provincial ministries of education. Education also emerged in the late twentieth century as part of the new diplomacy. A flowering of new international governmental organizations dedicated to furthering creative diplomacy brought new energy to this field.  相似文献   
118.
Book Reviews in This Article:
Getting Rid of Patients: Contradictions in the Socialization of Physicians . By Terry Mizrahi
Physicians and Social Change . By John Colombotos and Corinne Kirchner
Changing Values in Medicine . Edited by Eric J. Cassell and Mark Siegler
Professional Ethics and Primary Care Medicine: Beyond Dilemmas and Decorum . By Harmon L. Smith and Larry R. Churchill
Physician—Patient Decision-Making: A Study in Medical Ethics . By Douglas N. Walton
With Dignity: The Search for Medicare and Medicaid . By Sheri I. David
The Dismissal of Students with Mental Disorders. Legal Issues, Policy Considerations, and Alternative Responses .
Courtroom Toxicology . By Marshall Houts, Randall C. Baselt, and Robert H. Cravey  相似文献   
119.
120.
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