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   6495篇
  免费   298篇
  2023年   56篇
  2020年   122篇
  2019年   121篇
  2018年   484篇
  2017年   421篇
  2016年   464篇
  2015年   194篇
  2014年   176篇
  2013年   1315篇
  2012年   193篇
  2011年   342篇
  2010年   314篇
  2009年   190篇
  2008年   201篇
  2007年   238篇
  2006年   114篇
  2005年   96篇
  2004年   80篇
  2003年   67篇
  2002年   67篇
  2001年   76篇
  2000年   74篇
  1999年   60篇
  1998年   52篇
  1997年   53篇
  1996年   38篇
  1995年   49篇
  1994年   39篇
  1993年   55篇
  1992年   38篇
  1991年   48篇
  1990年   39篇
  1989年   42篇
  1988年   28篇
  1987年   44篇
  1986年   36篇
  1985年   49篇
  1984年   48篇
  1983年   39篇
  1982年   38篇
  1981年   37篇
  1980年   42篇
  1979年   38篇
  1978年   39篇
  1977年   41篇
  1976年   50篇
  1975年   32篇
  1974年   30篇
  1973年   25篇
  1972年   21篇
排序方式: 共有6793条查询结果,搜索用时 15 毫秒
31.
Books reviewed in this article:
A. Comments
B. Book Notes
Abney, Glenn and Thomas P Lauth The Politics of State and City Administration
Adams, William J and Christran Stoffaes, (eds) French Industrial Policy
Binkin, Martin, Military Technology and Defense Manpower
Elazar, aniel J Cities of the Prairie Revisited The Closing of the Metropolitan Frontier
Ginsberg, Benjamin The Captive Public How Mass Opinion Promotes State Power
Heath, Robert L and Richard Alan Nelson Issues Management Corporate Public Policymaking in an Information Society
Hunt, Morton Profiles of Social Research The Scientific Study of Human Interactions
Kaplan, Marshall and Peggy Cuciti (eds) The Great Society and itsLegacy wenty Years of U S Social Policy
Katz, Michael B In the Shadow of the Poorhouse A Social History of Welfare in America
Katzmann, Robert A. Institutional Disability The Sage of Transporation Policy for the Disabled
Liroff, Richard A Reformaing Air Pollution Regulation The Toil Trouble of EPA's Bubble
Lowi, Theodore J The Personal President Power Invested Promise Unflfilled
Mead, Walter J, Asbjorn Moseidjord, Dennis D Muraoka, and Philip E Sorenson Offshore Lands. Oil and Gas Leasing and Conservation on th Outer Continental Shelf
Muskie, Edmund, Kenneth Rush, and Kenneth W Thompson The President, the Congress and Foreign Policy
Openshaw, Stan Nuclear Power. Siting and Safety
Peters, B Guy American Public Policy Promise and Performance
Rosentraub, Mark S, (ed) Urban Policy Problems Federal Policy and Institutional Change
Story, Dale Industry, the State, and Public Policy in Mexico
Taylor, Ralph B, (ed) Urban Neighborhoods Research and Policy
Wesson, Robert and Heraldo Munoz, (eds) Latin American Views of U S Policy
Winston, Brian isunderstanding Media
Zurcher, Louis A, Milton L Boykin, and Hardy L Merritt Citizen Sailors in a Changing Society Policy Issues for Manning the United StatesNaval Reserve  相似文献   
32.
33.
A. Comments
B. Book Review Essay
Philip E Converse and Roy Pierce Political Representation France (Cambridge. MA and London Harvard University Press. 1986 ). 996 pp
Daniel Gaxie. ed, Explication du Vote (Paris Presses de la Fondation Nationale des Sciences Poiitlques. 1985 ). 450 pp
Jack Hayward. The State and the Market Economy industrial Patnotism and Economic lntervention in France (New York New York University Press, 1985 ). 267 pp
Howard Machin and Vincent Wright. eds, Economrc Policy-Making Under the Mitrerrand Presidency, 1981–1984 (New York St Martin's Press, 1985 ). 293 pp
C. Book Notes
Beldon, Joseph N Dirt Rich .
Brown, William P and Don F Hadwiger (eds) World Food Policies Toward Agricultural Interdependence
Weiss, Thomas G Multilateral Development Diplomacy in UNCTAD
Schultze, Charles L Other Times. Other Places Macroeconomic Lessons Form US and European History
Collingridge, David and Colin Reeve Science Speaks to Power The Role of Experts in Policymaking
Feller, Irwin Universities and State Governments A Study in Policy Analysis
Cawson, Alan Corporatism and Political Theory
Lefort, Claude The Political Forms of Modern Society Bureaucracy, Democracy, Totalitarianism
Lehne, Richard Casino Policy
Moorhouse, John C Electric Power Deregulation and the Public Interest
Wright, James D and Peter H Rossi Armed and Considered Dangerous A Survey of Felons and their Firearms
Kluegel, James R Beliefs About Inequality America's Views of What is and What Ought to Be
Raskin, Marcus G The Common Good Its Politics, Policies, and Philosophy
Schorr, Alvin L Common Decency Domestic Policies After Reagan
Davies, David G United States Tax and Tax Policy
Lee, Dwight R (ed) Taxation and the Deficit Economy Fiscal Policy and Capital Formation in the United States
Teplitz, Paul V and Stephen H Brooks Alternative Tax Proposals How the Numbers Add Up  相似文献   
34.
35.
36.
ABSTRACT. The premise of this paper is that one can discover much about the location determinants of high-technology industry by examining the location (migration) decision of workers with high-technology occupations. A model of the high-technology worker migration decision is developed that permits estimation of worker response to both personal and area characteristics, the latter chosen to mirror location factors often cited by high-technology firms as important for both the attraction and retention of their specialized work force. Logit estimates of this model between 1975 and 1980 are presented. The paper is concluded with a discussion of policy implications.  相似文献   
37.
38.
A Roman wreck, named Plemmirio B[1]i, lies on the rocky talus below the southern cliffs of Capo Murro di Porco, near Costa Bianca del Plemmirio (Penisola della Maddalena), prov. Siracusa, Sicily. The cargo of amphoras and iron bars, relatively well-preserved, is situated between 22 m and 47 m depth. Following brief examinations in 1974–1982, a University of Bristol expedition spent four weeks surveying the site in July-August 1983[2] This paper presents an interim summary of these campaigns; a comprehensive report will be published after completion of excavations at the site[3]. The archaeological deposit at Plemmirio B is characterized by concentrations of fragmented amphoras. There is no direct evidence for the structure of the ship, much of which may have disintegrated during the initial wreck process, but study of the artefact distribution suggests a vessel of fairly large capacity. The amphora consignment (which may have numbered no more than 200) comprised cylindrical African containers, 80% of which were form Africana 2A and 20% Africana 1[4] w. The Africana 2A amphoras had internal resinous linings, and so may have contained a fish product rather than olive oil. Other amphoras exposed on the site were at least one Mauretanian Dressel 30 (Keay type 1) and two possibly intrusive amphoras of unclassified types. Ferrous concretions contained voids (hollow casts) which may once have been about 39 wrought iron bars, of two distinctive shapes. These, and several other concretions of unidentified forms, may represent a consignment of iron originally weighing approximately one tonne. Other finds from the wreck are two cooking pots, a small bowl or cup, a sounding lead, three fragments of tegula rooftiles, and two small stone blocks. One of the cooking pots confirms a date for the wreck based on the amphora association of circa AD 180–250, most likely in the first decade of the 3rd century. The amphora assemblage belongs to an important phase of commerce from North Africa represented by at least 20 known wreck cargoes; however, few of these sites have been scientifically recorded or are as closely dated as Plemmirio B, and the diversity of container types and cargo consignments on this wreck is of particular interest.  相似文献   
39.
40.
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