全文获取类型
收费全文 | 11439篇 |
免费 | 253篇 |
专业分类
各国政治 | 351篇 |
工人农民 | 465篇 |
世界政治 | 632篇 |
外交国际关系 | 330篇 |
法律 | 8093篇 |
中国政治 | 71篇 |
政治理论 | 1673篇 |
综合类 | 77篇 |
出版年
2020年 | 124篇 |
2019年 | 145篇 |
2018年 | 264篇 |
2017年 | 210篇 |
2016年 | 305篇 |
2015年 | 157篇 |
2014年 | 208篇 |
2013年 | 894篇 |
2012年 | 367篇 |
2011年 | 387篇 |
2010年 | 233篇 |
2009年 | 236篇 |
2008年 | 287篇 |
2007年 | 332篇 |
2006年 | 322篇 |
2005年 | 621篇 |
2004年 | 388篇 |
2003年 | 317篇 |
2002年 | 263篇 |
2001年 | 447篇 |
2000年 | 397篇 |
1999年 | 314篇 |
1998年 | 105篇 |
1997年 | 86篇 |
1996年 | 92篇 |
1995年 | 85篇 |
1994年 | 90篇 |
1993年 | 88篇 |
1992年 | 204篇 |
1991年 | 238篇 |
1990年 | 230篇 |
1989年 | 255篇 |
1988年 | 239篇 |
1987年 | 239篇 |
1986年 | 214篇 |
1985年 | 233篇 |
1984年 | 186篇 |
1983年 | 203篇 |
1982年 | 115篇 |
1981年 | 112篇 |
1980年 | 84篇 |
1979年 | 134篇 |
1978年 | 105篇 |
1977年 | 89篇 |
1976年 | 82篇 |
1974年 | 103篇 |
1973年 | 100篇 |
1972年 | 84篇 |
1971年 | 90篇 |
1970年 | 84篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
13.
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
14.
V.K. Sharma R.K. Jadhav G.J. Rao A.K. Saraf Heeresh Chandra 《Forensic Science International Supplement Series》1991,50(2)
A method has been developed on reverse phase high performance liquid chromatography for simultaneous determination of methyl, ethyl and isopropyl alcohols under refractive index detection using pure water as the mobile phase. A good separation has been achieved between these alcohols. Detector response was linear with a detection limit of 5 mg/100 ml. Recovery studies were performed by adding known amounts of methyl and ethyl alcohols to blood, lung and liver within the range 80–90%. The reproducibility of the results was always >90%. The quantitative distribution of methyl alcohol in postmortem body tissues and fluids has been reported in three cases of poisoning. 相似文献
15.
Jennifer P. Maxwell 《Journal of family violence》2003,18(5):281-293
This article examines the use of Eye Movement Desensitization and Reprocessing (EMDR) in helping a client address problems with persistent anxiety and a lack of self-esteem. During EMDR treatment, the client explored the dichotomous thinking that had plagued her since childhood, and correspondingly, the role of childhood physical and emotional abuse in her chronic feelings of inadequacy and anxiety. The client experienced significant improvement in her levels of anxiety and problems with self-esteem, both at the end of treatment and at 1-year follow up. Qualitative and quantitative data are utilized in this case study outlining the use of EMDR with a client diagnosed with dysthymic disorder. 相似文献
16.
Andrew P. Davidson 《Development in Practice》2007,17(1):39-50
The concern driving current debate on agricultural extension is increasingly that of how to help farmers learn how to deal with the complex world around them responsibly and profitably, in such a way that the extension worker is ancillary. This article seeks to deconstruct and provide a more reasoned assessment of agricultural extension services through a reflection on development paradigms, adult education, individual empowerment, and institutional pluralism. By calling into question the underlying ethical dimensions of agricultural extension, it is possible to develop an alternative paradigm and thereby generate new insights into it. The article concludes that the raison d'être of agricultural extension today must be to create an ethical basis which ensures that extension practices are more inclusive and thus responsive to the needs of farmers and other rural populations, integrating individual expectations into the wider socio-economic, cultural, political, and geographical environment. 相似文献
17.
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
18.
19.
D. P. Doessel 《Australian Journal of Public Administration》1991,50(3):383-396
Abstract: This paper is concerned with an analysis of legislation, public administration and government expenditure decisions on policing activities. These three dimensions of government can be used as mechanisms of social control. Whether they are or not is an empirical question that has to be determined in each case. It is shown that there are no strict relationships between the three dimensions of government activity: separate decision-making is undertaken for each of the three dimensions. It is indicated that there are eight possible combinations of the three dimensions, assuming that the three dimensions of government activity are bivariate and discrete. The empirical analysis relates to the state of Queensland and it is concluded that Queensland can be described as a case consisting of authoritarian legislation, public administration contrary to the rule of law, and low policing expenditures. 相似文献
20.
Lawyers for conservative and libertarian causes are active in organizing and mobilizing interest groups within the conservative coalition, and networks of relationships among those lawyers help to maintain and shape the coalition. Using data gathered in interviews with seventy-two such lawyers, this article analyzes characteristics of the lawyers and the structure of their networks. The findings suggest that the networks are divided into segments or blocks that are identified with particular constituencies, but that a distinct set of actors with extensive relationships serves to bridge the constituencies. Measures of centrality and brokerage confirm the structural importance of these actors in the network, and a search of references in news media confirms their prominence or prestige. This "core" set of actors occupies the "structural hole" in the network that separates the business constituency from religious conservatives. Libertarians, located near the core of the network, also occupy an intermediate position. Regression analysis of ties within the network suggests that the Federalist Society plays an important role in bringing the lawyers together. 相似文献