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   1568篇
  免费   61篇
各国政治   116篇
工人农民   97篇
世界政治   162篇
外交国际关系   83篇
法律   712篇
中国政治   9篇
政治理论   431篇
综合类   19篇
  2023年   15篇
  2021年   10篇
  2020年   22篇
  2019年   31篇
  2018年   43篇
  2017年   49篇
  2016年   67篇
  2015年   29篇
  2014年   54篇
  2013年   239篇
  2012年   50篇
  2011年   47篇
  2010年   30篇
  2009年   52篇
  2008年   52篇
  2007年   51篇
  2006年   28篇
  2005年   40篇
  2004年   53篇
  2003年   42篇
  2002年   43篇
  2001年   55篇
  2000年   61篇
  1999年   34篇
  1998年   25篇
  1997年   22篇
  1996年   17篇
  1995年   12篇
  1994年   20篇
  1993年   15篇
  1992年   20篇
  1991年   32篇
  1990年   29篇
  1989年   20篇
  1988年   20篇
  1987年   19篇
  1986年   14篇
  1985年   18篇
  1984年   16篇
  1983年   15篇
  1982年   13篇
  1981年   6篇
  1980年   8篇
  1979年   16篇
  1978年   6篇
  1976年   9篇
  1975年   6篇
  1974年   6篇
  1973年   9篇
  1972年   8篇
排序方式: 共有1629条查询结果,搜索用时 15 毫秒
151.
i. Oman and Southeastern Arabia: A Bibliographic Survey. By Michael Owen Shannon. Boston, Mass., G.K.Hall & Co., 1978. pp.xvi, 165. $18.00.

ii. Türk Dili ve Edebiyati Ansiklopedisi: Devirler/Isimler/ Eserler/Terimler. Istanbul, Dergah Yayinlari, 1977. TL600 (for 2 vols.).

iii. Arab‐Israeli conflict: a historical, political, social and military bibliography. By Ronald M.De Vore. Oxford, Clio Press, 1976, pp.273. £10.45.

Conflict in the Middle East from October 1973 to July 1976: a selected bibliography. By Michael Rubner. Los Angeles, Center for the Study of Armament and Disarmament, California State University, 1977. pp.83. $3.00.

The Palestine Question: a select bibliography. Compiled from the holdings of the Dag Hammarskj?ld Library, United Nations. New York, United Nations, 1976. pp.63. £3.25 (Distributed in the U.K. by H.M.S.O.).

iv. Middle East Contemporary Survey: Volume I 1976–77.

Edited by Colin Legum. Tel Aviv, Shiloah Center for Middle Eastern and African Studies, University of Tel Aviv, and New York and London, Holmes and Meier, 1978. pp.xxiv, 684. £32.50.

v. The Modern Middle East: A Guide to Research Tools in the Social Sciences. By Reeva S.Simon. Boulder, Colorado, Westview Press, 1978. pp.xv, 283. £6.10.

vi. Gustav Meisels, Reference Literature to Arabic Studies, a bibliographical guide. Tel Aviv, University Publishing Projects Ltd., 1978. pp.xiv + 251.

vii. Saudi Arabia (World Bibliographical Series Vol.5).

Compiled by Frank A.Clements. Oxford and Santa Barbara, Clio Press, 1979. pp.xiv, 195. £16.75.

viii. The Records of the British Residency and Agencies in the Persian Gulf. IOR R/15. (India Office Records: Guides to Archive Groups). By Penelope Tuson. London, India Office Library and Records, 1979. pp.xix, 188. Pl.6. Index. £21.95.

ix. Modern Syria: An Introduction to the Literature. Compiled by C.H.Bleaney. Durham University, Centre for Middle Eastern and Islamic Studies (Occasional Papers Series, no.6). 1979. £4.00.

x. The Encyclopaedia of Islam. New Edition: Encyclopédie de 1'Islam. Nouvelle édition. Index to Volumes/aux [sic: read ‘des‘] Tomes I‐III. Compiled by/Établi par H.& J.D. Pearson. Edited by/Publié par E.van Donzel. Leiden, Brill/Paris, G.P.Maisonneuve & Larose S.A., 1979. pp.viii, 195. 60 guilders.  相似文献   

152.
153.
Forensic hair examiners using traditional microscopic comparison techniques cannot state with certainty, except in extremely rare cases, that a found hair originated from a particular individual. They also cannot provide a statistical likelihood that a hair came from a certain individual and not another. There is no data available regarding the frequency of a specific microscopic hair characteristic (i.e., microtype) or trait in a particular population. Microtype is a term we use to describe certain internal characteristics and features expressed when observing hairs with unpolarized transmitted light. Courts seem to be sympathetic to lawyer's concerns that there are no accepted probability standards for human hair identification. Under Daubert, microscopic hair analysis testimony (or other scientific testimony) is allowed if the technique can be shown to have testability, peer review, general acceptance, and a known error rate. As with other forensic disciplines, laboratory error rate determination for a specific hair comparison case is not possible. Polymerase chain reaction (PCR)-based typing of hair roots offer hair examiners an opportunity to begin cataloging data with regard to microscopic hair association error rates. This is certainly a realistic manner in which to ascertain which hair microtypes and case circumstances repeatedly cause difficulty in association. Two cases are presented in which PCR typing revealed an incorrect inclusion in one and an incorrect exclusion in another. This paper does not suggest that such limited observations define a rate of occurrence. These cases illustrate evidentiary conditions or case circumstances which may potentially contribute to microscopic hair association errors. Issues discussed in this review paper address the potential questions an expert witness may expect in a Daubert hair analysis admissibility hearing.  相似文献   
154.
155.
This article examines option hedging strategies that enable politicians to manage budgetary risk. While the theoretical risk management arguments are general, the simulation analysis considers the example of oil revenue risk in Texas, and estimates the costs and benefits of an option hedging program. To evaluate government option hedging strategies, the study develops a hedge quotient measure that compares the future value of realized revenues plus net option proceeds to the future value of expected revenue. The average hedge quotient is found to be lower for the option hedging strategy than for the unhedged position, illustrating the cost of an option hedging program. Nevertheless, option hedging effectively manages extreme downside risk and stops large budget deficits from occurring. Politicians may also like option hedging because it preserves the potential of realizing budget surpluses.  相似文献   
156.
In this article, we identify legal knowledge as a key difference between workers who desire workplace change and those who do not. Based on surveys with 121 day laborers, we find that not all day laborers are equally dissatisfied with their jobs, despite uniformly difficult working conditions. Some day laborers do not want to make any real changes to the day labor industry, while others desire a range of industry changes, from higher wages to greater government regulation and unionization. A key difference between these workers is their knowledge of employment law: Those who know the law are more likely to desire workplace change.  相似文献   
157.
158.
159.
This article focuses on the changing context for transatlantic relations within the global political economy. The first part of the article identifies key areas of structural change in the GPE and in particular the potentially revolutionary shifts caused by global instability and the emergence of new economic powers. The argument then explores changing patterns of economic relations between the EU and the US, within a general framework of continuity created by the coexistence of competition and convergence. These contextual factors are then related to patterns of Atlanticism and transatlanticism, to questions of values and identities in the GPE and to the possibility of an EU–US 'grand strategy' for the changing GPE. The conclusion argues that although there is perhaps more secure ground for a sustainable EU–US 'compact' than previously, the EU and the US may have 'missed the bus' in terms of jointly shaping the future of the global economy.  相似文献   
160.
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