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   5865篇
  免费   150篇
  2020年   50篇
  2019年   98篇
  2018年   385篇
  2017年   306篇
  2016年   345篇
  2015年   98篇
  2014年   89篇
  2013年   1349篇
  2012年   164篇
  2011年   270篇
  2010年   322篇
  2009年   186篇
  2008年   161篇
  2007年   235篇
  2006年   101篇
  2005年   91篇
  2004年   64篇
  2003年   56篇
  2002年   65篇
  2001年   74篇
  2000年   55篇
  1999年   64篇
  1998年   66篇
  1997年   50篇
  1996年   57篇
  1995年   45篇
  1994年   51篇
  1993年   48篇
  1992年   41篇
  1991年   37篇
  1990年   25篇
  1989年   42篇
  1988年   38篇
  1987年   55篇
  1986年   39篇
  1985年   41篇
  1984年   53篇
  1983年   47篇
  1982年   37篇
  1981年   44篇
  1980年   54篇
  1979年   49篇
  1978年   30篇
  1977年   52篇
  1976年   37篇
  1975年   38篇
  1974年   23篇
  1972年   25篇
  1970年   23篇
  1969年   22篇
排序方式: 共有6015条查询结果,搜索用时 62 毫秒
101.
102.
Book reviews     
THE MIND OF EAST ASIA, Lily Abegg. (338 pp. with Index). Translated from the German. Thames and Hudson; London, New York.

BRITAIN AND THE UNITED STATES: Problems in Co‐operation. A joint report prepared by Henry L. Roberts and Paul A. Wilson. London. Royal Institute of International Affairs. Pp. 224. Price 8/6 sterling. 1953.

D?R LAUTLOSE AUFSTAND. BERICHT VEBER DIE WIDER‐STANDSBEWEGUNG DES DEUTSCHEN VOLKES 1933–1945. Herausgegeben von Guenther Weissenborn. Rowohlt Verlag Hamburg. Pp. 348.

“EASTERN AND WESTERN WORLD”: Selected Readings with a foreword by S. Hofstra. Issued under the auspices of the Netherlands Foundation for International Co‐operation and published by W. Van Hoeve Ltd., The Hague, Bandung. 1953. Pp. 181.

NATIONALISM AND SOCIAL COMMUNICATION. By Karl W. Deutsch. John Wiley & Sons, N. Y. viii and 292.

BURMA UNDER THE JAPANESE: By Thakin Nu. Pictures and Portraits, Edited and translated with Introduction by J. S. Furnivall. Macmillan, London. 1954. Pp. xxviii and 132. Price 12s 6d.

COMMODITY TRADE AND ECONOMIC DEVELOPMENT—Report of a Committee appointed by the Secretary‐General, United Nations, Published by the United Nations, 1953.  相似文献   

103.
Book reviews     
MIDDLE EAST AND FAR EAST, Allan S. Walker, M.D., Ch.M., F.R.A.C.P. Published by the Australian War Memorial, Canberra. Obtainable at all booksellers, price 35/‐.

UNESCO, HUMANISM AND EDUCATION IN EAST AND WEST — Published in 1953 by the United Nations. 224 pages.

THE ALTERNATIVE (a dynamic approach to our relations with Asia). By John Burton, B.A., B.Ec., Ph.D., Sydney. Morgans Publications, 1954. PP. 116.

TING HSIEN — A North China Rural Community: By Sidney D. Gamble (Institute of Pacific Relations, New York, 1954). U.S. $6.50.

ZWISCHEN BEFREIUNG UND FREIHEIT. DER SONDERFALL OSTERREICH, by Karl Gruber. Verlag Ullstein. Wien, 1953.

AMERICAN ECONOMIC POLICY TOWARDS THE PHILIPPINES: By Shirley Jenkins — With an introduction by Claude A. Buss. Published under the auspices of the American Institute of Pacific Relations by Stanford University Press, California, 1954. P. 181.

THE ORIGINS OF PRUSSIA: By F. L. Carsten—Clarendon Press. Oxford, 1954. 309 pp., 1 map. (55/6 sterling).  相似文献   

104.
A comparison of testamentary practice in medieval Genoa with that in Douai, France, reveals how differing social orientations resulted in profoundly contrasting social practices. Genoese society was chiefly privately orientated, and patrimony in Genoa was correspondingly transmitted along a vertical dimension. The public nature of the process in Douai, meanwhile, was correlated with a wide distribution of legacies on a horizontal axis. Women in Douai, therefore, enjoyed a scope of action not experienced by their Genoese counterparts. These circumstances, in turn, require a re‐evaluation of the so‐called ‘Frauenfrage‘ — the supposed problem of too many unmarried women.  相似文献   
105.
106.
Historical records indicate that the fertile soils of the western and central Wimmera Plains of Victoria, Australia formerly supported grassy woodlands on rises and flats, and grasslands on shallow depressions and clay plains. Soil type and micro-relief appear to have been the major factors that determined the distribution of these communities. Burning of the woodlands by Aborigines may have contributed to their open grassy nature. The few ungrazed remnants of Buloke (Allocasuarina luehmannii) woodland support a suite of species that are absent from or uncommon in other Buloke woodland remnants in the region. This work demonstrates that in districts where little intact native vegetation remains, investigation of the distribution and floristic composition of the pre-settlement vegetation can provide useful information for the maintenance and restoration of remnant vegetation.  相似文献   
107.
108.
We develop a new conceptual approach to locating inspection stations for hazardous vehicles, prevention, and compare it to the previous, punitive, philosophy of the flow-capturing location model. We implement this preventive protection philosophy with a new mixed integer program that maximizes hazard avoidance by locating a number of inspection stations to detect and remove hazardous vehicles as early in their trips as possible. We test the model's performance and analyze the spatial characteristics of solutions simulating several potential applications. Our computations demonstrate that a relaxed integer-linear program is overly demanding computationally and that a simple greedy heuristic lacks robustness. We suggest further approaches to developing more powerful and efficient solution methods.  相似文献   
109.
110.
Non-destructive X-ray fluorescence analyses induced by white synchrotron radiation (SYXRF) have been performed on a page of the Gutenberg Bible and 21 other different single leaves printed in the years 1470 to 1500. Absolute elemental areal densities for the papers and the inks are reported. The known high Cu and Pb content in Gutenberg's ink is confirmed. The elemental compositions of the other inks, if measurable by XRF at all, are in general very low, governed only by a few additional elements and found to be not distinctive for a known printer. This will render an identification of the printer or printing offices by ink composition analysis in the period after 1470 difficult.  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