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   20574篇
  免费   654篇
各国政治   919篇
工人农民   751篇
世界政治   1817篇
外交国际关系   791篇
法律   11710篇
中国共产党   2篇
中国政治   92篇
政治理论   4939篇
综合类   207篇
  2020年   247篇
  2019年   299篇
  2018年   412篇
  2017年   479篇
  2016年   536篇
  2015年   364篇
  2014年   390篇
  2013年   2228篇
  2012年   497篇
  2011年   507篇
  2010年   432篇
  2009年   489篇
  2008年   542篇
  2007年   574篇
  2006年   550篇
  2005年   498篇
  2004年   495篇
  2003年   514篇
  2002年   469篇
  2001年   741篇
  2000年   687篇
  1999年   565篇
  1998年   372篇
  1997年   306篇
  1996年   235篇
  1995年   269篇
  1994年   297篇
  1993年   272篇
  1992年   397篇
  1991年   410篇
  1990年   372篇
  1989年   399篇
  1988年   371篇
  1987年   392篇
  1986年   389篇
  1985年   393篇
  1984年   342篇
  1983年   358篇
  1982年   303篇
  1981年   284篇
  1980年   211篇
  1979年   283篇
  1978年   197篇
  1977年   175篇
  1976年   154篇
  1975年   140篇
  1974年   153篇
  1973年   136篇
  1972年   126篇
  1969年   102篇
排序方式: 共有10000条查询结果,搜索用时 19 毫秒
171.
The fingernail ridge patterns of a pair of identical twins were compared to each other, their parents, and an unrelated subject. The patterns of the twins' nails showed regions of strong similarity but were distinguishable from one another. Fewer similarities were found when comparing the nails to those of the parents and the unrelated control. The twins were shown to be monozygotic by means of DNA profiling. This therefore represents the first demonstration of unique fingernail ridge patterns in subjects shown conclusively to be identical twins. When the fingernail ridge patterns were examined with a scanning electron microscope, the backscattered electron (BEI) images were found to have superior contrast when compared to the secondary electron (SEI) images.  相似文献   
172.
Workers Compensation claims are not interpersonal disputes. Almost always they are disputes between individuals and corporations. Compensation insurers are "repeat players" in the system. Workers are often "one–shotters" who have little or infrequent contact with the system. Power inequality between the worker, employer, insurer, and those who are required to facilitate negotiations and resolve and settle disputes under compensation legislation are matters of considerable importance. This paper examines the effects of the implementation, in 1993, of informal dispute resolution processes in the Western Australian workers compensation system under the Workers Compensation and Rehabilitation Act 1981(WA), which excluded lawyers from the process. It argues that preexisting power imbalances have been aggravated by these procedural changes, and in particular, by the exclusion of legal practitioners from the dispute resolution process. The issues raised herein have general application to most workers compensation systems.  相似文献   
173.
Little literature has been developed to describe the process of transferring a corporation's technology between international units of that company for ultimate transfer to their external customers (Kimberly 1981 and Leonard-Barton and Sinha 1993). This paper addresses the issues at Air Products and Chemicals, Inc. involved in the transfer of applications technology. Technology is transferred from the unit of the corporation which develops the technology to international affiliates and subsidiaries. The ultimate goal is the support of product sales to the external industrial customer. A strategy for this type of organization is described which is supported by references to theoretical constructs in the literature and empirical observations from the organization itself.  相似文献   
174.
175.
176.
177.
This paper applies the poliheuristic theory of foreign policy decision making to non-democratic states. Poliheuristic theory asserts that state leaders assign primary importance to their political survival; however, the meaning of "the political" varies dramatically from country to country. Furthermore, the types of actors who hold leaders politically accountable also vary between countries. Consequently, leaders often pursue vastly different means of ensuring their political survival. The author uses the common distinction between single-party, military, and personalist autocracies to show that apparently arbitrary differences in autocratic leaders' political concerns actually vary in systematic and potentially predictable ways. Because this argument is generalized to non-democratic states as a whole, it has important implications for the ways in which democratic states craft their policies toward autocracies.  相似文献   
178.
179.
180.
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