全文获取类型
收费全文 | 8209篇 |
免费 | 274篇 |
专业分类
各国政治 | 278篇 |
工人农民 | 326篇 |
世界政治 | 530篇 |
外交国际关系 | 294篇 |
法律 | 5558篇 |
中国政治 | 59篇 |
政治理论 | 1403篇 |
综合类 | 35篇 |
出版年
2023年 | 54篇 |
2021年 | 51篇 |
2020年 | 105篇 |
2019年 | 127篇 |
2018年 | 173篇 |
2017年 | 184篇 |
2016年 | 194篇 |
2015年 | 134篇 |
2014年 | 158篇 |
2013年 | 675篇 |
2012年 | 189篇 |
2011年 | 236篇 |
2010年 | 167篇 |
2009年 | 201篇 |
2008年 | 214篇 |
2007年 | 192篇 |
2006年 | 220篇 |
2005年 | 169篇 |
2004年 | 195篇 |
2003年 | 197篇 |
2002年 | 171篇 |
2001年 | 378篇 |
2000年 | 323篇 |
1999年 | 245篇 |
1998年 | 96篇 |
1997年 | 106篇 |
1996年 | 88篇 |
1995年 | 100篇 |
1994年 | 102篇 |
1993年 | 105篇 |
1992年 | 192篇 |
1991年 | 180篇 |
1990年 | 199篇 |
1989年 | 176篇 |
1988年 | 211篇 |
1987年 | 199篇 |
1986年 | 192篇 |
1985年 | 204篇 |
1984年 | 160篇 |
1983年 | 144篇 |
1982年 | 90篇 |
1981年 | 80篇 |
1980年 | 59篇 |
1979年 | 82篇 |
1978年 | 67篇 |
1975年 | 57篇 |
1974年 | 81篇 |
1973年 | 52篇 |
1971年 | 51篇 |
1970年 | 54篇 |
排序方式: 共有8483条查询结果,搜索用时 15 毫秒
11.
Conclusion With the passage of the Administrative Dispute Resolution Act, the stage was set for innovation and change in federal agencies. Now, part way into the five-year life of the Act, a new administration has the potential to encourage even wider use of ADR at the federal level, providing still more examples from which to develop a clearer sense of best practice. Additional funds, both for ACUS and individual agencies, are vital to providing the level of experimentation, innovation, and documentation needed to ensure success.MIT ProfessorLawrence E. Susskind is director of the MIT-Harvard Public Disputes Program, 512 Pound Hall, Harvard Law School, Cambridge, Mass. 02138.Eileen F. Babbitt is associate director of the Public Disputes Program.Phyllis N. Segal is a practicing mediator with Endispute, Incorporated.The authors would like to acknowledge the federal dispute resolution specialists who contributed greatly to our work by providing interviews and materials for this article: Cathy Costantino of FDIC; David Batson of EPA; John Settle and Ron Walczak of HHS; David Drabkin of DLA; Jim Jones of DOL; Sheldon Guttman of FCC; Charles Pou of ACUS; Jeff Domber of GSA; and Diane Liff of DOT. 相似文献
12.
13.
14.
The individuality of fibres used to provide forensic evidence--not all blue polyesters are the same.
Fibres used in forensic casework suffer from a disadvantage common to other forms of trace evidence--it is not possible to state with absolute certainty that they originate from a specific source. Target fibre studies, population studies and research on 'blocks of colour' have effectively demonstrated the polymorphism of textile fibres (particularly man-made ones) and have shown that when a fibre is believed to have a specific putative source, the chance that it has originated from a different source purely by coincidence is extremely remote. A study by Houck MM (Houck MM, Inter-comparison of unrelated fibre evidence. Forensic Science International 2003; 135: 146-149) has shown that no coincidental matching fibres were recovered from items of clothing examined in 20 unrelated crimes. The study involved over two million comparisons. This work goes a step further, and using the example of blue polyester fibres shows that even within a very narrow segment of the whole general fibre population, many examples of a specific colour/type of man-made fibre taken from random sources can be compared and the chance of any two being the same is very low. These studies should help to show the specificity and value of transferred fibres in providing forensic evidence. 相似文献
15.
This article tests cross-nationally the minority group threat thesis that public sentiments toward repressive crime-control policies reflect conflicted racial and ethnic relations. Using multiple data sets representing France, Belgium, the Netherlands, East and West Germany, Italy, Luxembourg, Denmark, Great Britain, Greece, Spain, Finland, Sweden, Austria, Canada, Ireland, and Portugal, we examine whether racial and ethnic intolerance—animus, resentments, or negative sentiments toward minorities—predicts greater support for the death penalty. Our results reveal that the respondents were significantly more likely to express support for capital punishment if they were racially or ethnically intolerant while controlling for other covariates of public opinion. These findings indicate that the link between support for capital punishment and racial and ethnic animus may occur universally in countries with conflicted racial and ethnic relations. 相似文献
16.
V I Bakhmet'ev I V Buromski? V N Kriukov M N Nagornov 《Sudebno-meditsinskaia ekspertiza》1991,34(4):11-17
Data on bone tissue fractography are summarized and systematized. Possibilities of a microscopic fractography method in analysis of skeletal bone fractures in order to determine conditions of traumatic exposure were shown. Destruction of bone tissue is considered from the point of view of fragile and tough destruction using as a model solid body with crack at the top of which deformations of detachment, lateral and longitudinal shifts are acting. Morphologic features for different types of destruction were singled out. Use of these features may help to determine character and type of deformation at concrete areas of fracture during all destruction process. 相似文献
17.
Data on 63 cases of subcapsular spleen lesions are analyzed. Circumstances of trauma infliction period of the 2-nd stage of spleen capsule rupture, morphological types of subcapsular spleen lesions, microscopic changes in different posttraumatic periods are presented. 相似文献
18.
19.
P. Gill C.H. Brenner J.S. Buckleton A. Carracedo M. Krawczak W.R. Mayr N. Morling M. Prinz P.M. Schneider B.S. Weir 《Forensic Science International Supplement Series》2006,160(2-3):90-101
The DNA commission of the International Society of Forensic Genetics (ISFG) was convened at the 21st congress of the International Society for Forensic Genetics held between 13 and 17 September in the Azores, Portugal. The purpose of the group was to agree on guidelines to encourage best practice that can be universally applied to assist with mixture interpretation. In addition the commission was tasked to provide guidance on low copy number (LCN) reporting. Our discussions have highlighted a significant need for continuing education and research into this area. We have attempted to present a consensus from experts but to be practical we do not claim to have conveyed a clear vision in every respect in this difficult subject. For this reason, we propose to allow a period of time for feedback and reflection by the scientific community. Then the DNA commission will meet again to consider further recommendations. 相似文献
20.