全文获取类型
收费全文 | 37985篇 |
免费 | 1427篇 |
出版年
2023年 | 468篇 |
2022年 | 424篇 |
2021年 | 520篇 |
2020年 | 985篇 |
2019年 | 1158篇 |
2018年 | 1457篇 |
2017年 | 1418篇 |
2016年 | 1413篇 |
2015年 | 1032篇 |
2014年 | 1111篇 |
2013年 | 5801篇 |
2012年 | 1401篇 |
2011年 | 1612篇 |
2010年 | 1688篇 |
2009年 | 1837篇 |
2008年 | 1557篇 |
2007年 | 1410篇 |
2006年 | 1365篇 |
2005年 | 1145篇 |
2004年 | 722篇 |
2003年 | 687篇 |
2002年 | 710篇 |
2001年 | 679篇 |
2000年 | 596篇 |
1999年 | 563篇 |
1998年 | 391篇 |
1997年 | 343篇 |
1996年 | 341篇 |
1995年 | 337篇 |
1994年 | 350篇 |
1993年 | 320篇 |
1992年 | 280篇 |
1991年 | 239篇 |
1990年 | 213篇 |
1989年 | 268篇 |
1988年 | 214篇 |
1987年 | 240篇 |
1986年 | 228篇 |
1985年 | 259篇 |
1984年 | 261篇 |
1983年 | 276篇 |
1982年 | 228篇 |
1981年 | 231篇 |
1980年 | 252篇 |
1979年 | 225篇 |
1978年 | 220篇 |
1977年 | 234篇 |
1976年 | 195篇 |
1975年 | 201篇 |
1974年 | 173篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
TRANSFORMATION SCENE: THE CHANGING CULTURE OF A NEW GUINEA VILLAGE, by Ian Hobgin. The International Library of Sociology and Social Reconstruction, Routledge and Kegan Paul, London, 1951. xiv + 326 pp. with 2 maps and 22 plates. Price 30s.
AN INTRODUCTION TO WORLD POLITICS. By Professor W. Friedmann. 2nd ed. London, 1952 (Macmillan & Co. Ltd.), pp. xiv + 384. (Maps and tables).
THE SOCIAL SERVICES OF MODERN ENGLAND. By M. Penelope Hall. Routledge, 1952. Pp. viii 332. Price 25s. 相似文献
4.
Evidence from several disciplines supports the proposition that following the Wisconsinan and an initial but brief moist phase of the Holocene, there was a gradual drying trend in the mid-continent Prairie Peninsula that peaked about 7000 years ago, a pattern that was not reversed until about 4000 years ago. Except for minor perturbations, conditions during the past four millennia have essentially been similar to those of the present. Studies in palynology and geomorphology have shown that the climatic regimes of the early/mid Post-glacial had a marked influence on both the biota and landscape erosional patterns, especially along the margins of the Prairie Peninsula. Measurable changes in the landscape and attendant biota show a time-transgressive pattern of drought related phenomena recorded palaeo-ecologically from west to east.Few studies of archaeological sites in the Prairie Peninsula have examined the evidence in and around the sites themselves for data reflecting local environmental dynamics. In fact, earlier models proposed for explaining the evolution of food-procuring systems in eastern North America virtually ignored potential changes in the natural environment. This paper examines data from two archaeological sites along the prairie-forest border in Missouri that contain long cultural sequences. Evidence is presented that pronounced changes in the natural environment occurred and that these biophysical variables are indeed critical for understanding the evolution of food-procuring societies in the American Midwest. 相似文献
5.
Ángel Morillo Carmen Fernández Ochoa Javier Salido Domínguez 《Oxford Journal of Archaeology》2016,35(3):267-284
This paper explores the role of Hispania in the Atlantic route in Roman times. We analyse the different Atlantic Iberian territories along this route, based on recent archaeological advances and discoveries related to trade as well as the shipping infrastructure. The aim is to explain the origin and evolution of a new maritime area that was completely integrated with the political and commercial structure of the Empire, with trade routes that followed the coastal areas of the Iberian Peninsula all the way to the Mediterranean. 相似文献
6.
J.T. SMITH 《Oxford Journal of Archaeology》1985,4(3):341-351
The Roman villa at Barnsley Park was interpreted by its excavator as a farm run by a family and a body of workers, its distinctive archaeological features being the division into three yards and the existence of a number of circular structures described as pens. An alternative hypothesis envisages a kin-group, the 'pens' being the houses associated with three farmyards. The three families are presumed to have held and worked the surrounding land in some kind of joint proprietorship. This system became Romanised as a hall-type villa designed for the occupation of some modified form of the kin-group. 相似文献
7.
Clifford J. RogersAuthor vitae 《Journal of Medieval History》2011,37(3):321-341
Traditional understandings of the development of the medieval English longbow and its role in the fourteenth-century ‘infantry revolution’ have recently been challenged by historians. This article responds to the revisionists, arguing based on archaeological, iconographic and textual evidence that the proper longbow was a weapon of extraordinary power, and was qualitatively different from – and more effective than – the shorter self-bows that were the norm in England (and western Europe generally) before the fourteenth century. It is further argued that acknowledging the importance of the weapon as a necessary element of any credible explanation of English military successes in the era of the Hundred Years War does not constitute ‘technological determinism’. 相似文献
8.
Y. Zhang L. Wei Z. Cui T. Zhang Y. Lei A. Gu Y. Chen L. Y. Zhang Z. X. Du 《Archaeometry》2020,62(3):660-676
Palace lanterns were important and highly visible decorations in the imperial palace in Beijing, China, during the Qing dynasty (1636–1912). Most lanterns had colourful tassels made of fibres. The study performed a comprehensive investigation of the materials and dyes used for palace lantern tassels preserved in The Palace Museum, Beijing. Eight samples with different colours, including yellow, green and red, from five palace lanterns were analysed. By using ultra-performance liquid chromatography combined with time-of-flight mass spectrometry, the compositions of the dyes were identified quickly, and thus the dyes' origins were explored. A X-ray fluorescence spectrometer assisted in the detection of whether a mordant was used during the dyeing process. As a result, the tassels were all made of silk, discovered through the use of microscopic observation and micro-Fourier transform infrared spectrometry analysis. Different dyeing techniques were found in these tassels: yellow tassels were dyed by cork tree or turmeric by a direct dyeing method; greens were dyed by pagoda bud with an iron mordant, or by the combination of cork tree and indigo using multi-dyeing method; and red tassels were coloured with different acid red industrial dyes. These results provide valuable data for the conservation of ancient textile tassels and contribute to the investigation of other hanging tags. 相似文献
9.
We analyze the response of municipalities to the occurrence of natural disasters in terms of spending behavior, use of upper-tier transfers and recovery, using balance sheet data of about 8,000 Italian municipalities for the period 2000–2015, and the universe of earthquakes events. We find evidence of increasing expenditure for about 12 years after the shocks, with asymmetric responses between earthquake-related and unconditional grants, and heterogeneous flypaper effects across the country. While in northern municipalities expenditure tends to regress to pre-earthquake levels, southern municipalities stick to higher expenditure levels when grants drop. This evidence is coupled with a faster recovery of private income and housing prices in northern municipalities. 相似文献
10.
Geographic research on neoliberalism has explored the restructuring of educational landscapes wrought through marketisation of preschool, school and higher-education provision and considered the responsibilisation of parents and children for educational outcomes. This study develops understanding of the contingent emergence of neoliberal educational reform, and its progressive and regressive impacts, through an examination of the burgeoning private tuition market in England and Wales. The paper outlines the contours of the previously hidden supplementary education industry, demonstrating that it reinforces regional and classed inequalities, while opening possibilities for ethnic minority advancement. Conceptually, the paper advances debate about socio-spatial specificity in neoliberal change, showing that the intersection of policy, free markets and consumer behaviour reshapes the educational landscape in ways that extend beyond state intention and control. Through these processes, contingent market forms are produced that offer social mobility for some, but ensure the social reproduction of enduring regimes of power. 相似文献