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   631篇
  免费   32篇
  2024年   2篇
  2023年   8篇
  2020年   13篇
  2019年   23篇
  2018年   17篇
  2017年   36篇
  2016年   37篇
  2015年   20篇
  2014年   32篇
  2013年   183篇
  2012年   28篇
  2011年   25篇
  2010年   22篇
  2009年   21篇
  2008年   20篇
  2007年   15篇
  2006年   12篇
  2005年   13篇
  2004年   12篇
  2003年   17篇
  2002年   11篇
  2001年   8篇
  2000年   5篇
  1999年   7篇
  1998年   7篇
  1997年   4篇
  1996年   2篇
  1995年   4篇
  1994年   4篇
  1993年   6篇
  1992年   4篇
  1989年   1篇
  1988年   2篇
  1987年   2篇
  1986年   3篇
  1985年   4篇
  1984年   3篇
  1983年   4篇
  1982年   4篇
  1981年   5篇
  1980年   1篇
  1979年   3篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1975年   2篇
  1974年   2篇
  1973年   1篇
  1972年   1篇
  1971年   1篇
排序方式: 共有663条查询结果,搜索用时 15 毫秒
61.
From 1967 to 1975 a team of archaeologists excavated the site of Tepe Yahya in southeastern Iran under the direction of C. C. Lamberg-Karlovsky. Although there are two forthcoming “final reports” (Hiebert (in progress), and Magee (in press); see also Lamberg-Karlovsky & Potts, 2001), analysis of the materials continues as opportunities allow. Metal artefacts, most especially those made of copper and its alloys, are found at this site from the late Neolithic through the Iron Age. Archaeometallurgical analysis, radiocarbon chronologies, and archaeological interpretation allow one to state when and how a type of metal or a style of object was invented, its use as a trade item, and its function and value to an ancient community. In the hopes of establishing a framework for future archaeometallurgical studies, most of the metal artefacts from Tepe Yahya, Iran, stored in the Peabody Museum of Harvard University, were analysed for elemental composition to complement stylistic and metallographic data.  相似文献   
62.
This article analyses some of the international legal issues arising out of the events of 11 September 2001. Those who perpetrated the attacks on the World Trade Center and the Pentagon were guilty of serious offences under United States law and possibly also under international law. The fact that their conduct was a crime does not, however, preclude it also being a threat to international peace and an armed attack. The author argues that the United States and its allies were entitled to respond to that attack and the threat of future attacks by using force against Al-Qa'ida and that, in the circumstances, it was also legitimate to take military action against the Taliban regime in Afghanistan which had sheltered Al-Qa'ida and permitted it to conduct operations from Afghan territory. The article also examines the application of the laws of armed conflict to the ensuing fighting and the status and treatment of those captured and held at Guantanamo Bay.  相似文献   
63.
Evidence is accumulating that the hominid cranium found in the Petralona cave in 1960 is associated with cave deposits of middle Pleistocene age. If this is so, the fossil is the most complete middle Pleistocene cranium yet discovered and provides important morphological, metrical and radiographic information on the possible evolutionary transition from Homo erectus to Homo sapiens. The classification of the specimen is discussed and it is suggested that a grade system within Homo spaiens should be erected. The Petralona fossil would be allocated to Homo sapiens grade 1 rather than to Homo erectus or to a subspecies of Homo sapiens.  相似文献   
64.
65.
66.
67.
68.
69.
70.
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