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   17322篇
  免费   569篇
  国内免费   5篇
各国政治   699篇
工人农民   832篇
世界政治   1152篇
外交国际关系   579篇
法律   10985篇
中国共产党   6篇
中国政治   168篇
政治理论   3286篇
综合类   189篇
  2020年   236篇
  2019年   285篇
  2018年   359篇
  2017年   407篇
  2016年   428篇
  2015年   312篇
  2014年   326篇
  2013年   1621篇
  2012年   482篇
  2011年   509篇
  2010年   427篇
  2009年   429篇
  2008年   528篇
  2007年   569篇
  2006年   555篇
  2005年   506篇
  2004年   490篇
  2003年   520篇
  2002年   459篇
  2001年   688篇
  2000年   565篇
  1999年   490篇
  1998年   260篇
  1997年   180篇
  1996年   210篇
  1995年   186篇
  1994年   206篇
  1993年   208篇
  1992年   341篇
  1991年   372篇
  1990年   354篇
  1989年   293篇
  1988年   344篇
  1987年   282篇
  1986年   331篇
  1985年   294篇
  1984年   233篇
  1983年   225篇
  1982年   183篇
  1981年   197篇
  1980年   134篇
  1979年   182篇
  1978年   128篇
  1977年   112篇
  1976年   102篇
  1975年   130篇
  1974年   135篇
  1973年   107篇
  1972年   101篇
  1969年   99篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
201.
Programme based on mathematical model of the process of dead body temperature changing was developed for estimation of postmortem interval. Automatic retrieval of problem solution was performed on programmable microcalculators of "Electronica MK-61" type using adaptive approach. Diagnostical accuracy in case of dead body being preserved in permanent cooling conditions is +/- 3%.  相似文献   
202.
203.
It is by now widely accepted that social science research has only an indirect and general impact on public policymaking. Academic social science research, it is often argued, is antithetical to policy research: the former is animated by traditional scientific canons while the latter is specific and problem-oriented. Moreover, modern bureaucracies are now understood as political environments within which pure research will be routinely ignored if it does not serve someone's interests. For these and other reasons, social scientists are being encouraged either to eschew policy research or not to expect much influence. This article provides an alternative model of social scientists in the policy process, as consulting critics reviewing, analyzing and commenting upon substantive policy research. This model holds benefits for both scholars and clients, turns the canons of scientific inquiry into assets instead of liabilities, and responds to some of the concerns recently raised in the literature concerning the role of social science in the policy process.  相似文献   
204.
205.
206.
There is always a temptation to suppose that one's own problems (whether personal or national) are unique. They rarely are. The "problem" of the elderly is no exception and so there is no particular point in looking to the specific characteristics of one's own health, social service, and social security systems for causes. There is, however, every reason to be looking at them for the consequences. They can also exacerbate the causes. In this paper we sketch the principal features (economic, social, and demographic) that have contributed to the "problem" of the elderly in Europe and then outline the main intellectual issues that need to be explored and resolved. That sounds a bit pompous but, if one is to avoid an intellectual morass consisting of the various assertions about needs, obligations, and so on that emanate from rival concerned parties and various professional interests on the one hand, and simplistic political slogans whose only virtue is that they cut the Gordian Knot (but provide no real enlightenment) on the other, then we need to be doing just this. We shall take a few things for granted: that cost-containment is not the be-all-and-end-all of policy; that value for money depends equally on what you get as on what you spend; that overall expenditure per head is mainly determined by income per head (though some countries have managed to get and stay below the regression line); and that it "ain't so" that all one needs to do is to "leave it to the market." To have justified each of these would have taken too much space so we can only assert them and trust that, in swallowing these camels, you won't strain at the gnats to come.  相似文献   
207.
208.
Book reviews     
Transborder Data Flows (Proceedings of an OECD Conference) Edited by Hans‐Peter Gassmann North Holland (Elsevier Science Publishers) 1985, US$74.00

Plastic and Electronic Money: New Payment Systems and Their Implications Patrick Frazer Woodhead Faulkner Limited 1985 £35

A User's Guide To Computer Contracting: Forms, Techniques and Strategies Davis, Allen, Bowman and Armstrong Harcourt Brace Jovanovich 1985, $75

Legal Protection of Computer Programs and Data C. Millard Sweet & Maxwell/Stevens 1985, £24

Piracy of Phonograms Gillian Davies ESC Publishing Ltd. 1986. 2nd edition. £17.95.

Biotechnology and Patent Protection—An International Review F. K. Beier, R. S. Crespi and J. Straus O.E.C.D. 1985, £5

Protecting Privacy in Two‐Way Electronic Services David H. Flaherty Mansell Publishing Company 1985, £23.50

High‐Tech Espionage Jay Tuck Sidgwick and Jackson Ltd 1980, £10.95  相似文献   

209.
210.
Atypical entrance gunshot wounds may be produced by deflected or ricocheting bullets. One special type of atypical entrance wound involves abrasion of the skin at a site that is remote from the point of dermal penetration. These remote abrasions, termed "tumbling abrasions," are produced by bullets that tumble after impact with an intermediate target. Three cases of tumbling abrasions are presented.  相似文献   
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