全文获取类型
收费全文 | 1652篇 |
免费 | 52篇 |
专业分类
各国政治 | 108篇 |
工人农民 | 69篇 |
世界政治 | 160篇 |
外交国际关系 | 110篇 |
法律 | 709篇 |
中国政治 | 17篇 |
政治理论 | 516篇 |
综合类 | 15篇 |
出版年
2023年 | 9篇 |
2022年 | 6篇 |
2021年 | 10篇 |
2020年 | 21篇 |
2019年 | 54篇 |
2018年 | 44篇 |
2017年 | 49篇 |
2016年 | 56篇 |
2015年 | 34篇 |
2014年 | 38篇 |
2013年 | 335篇 |
2012年 | 43篇 |
2011年 | 36篇 |
2010年 | 40篇 |
2009年 | 39篇 |
2008年 | 61篇 |
2007年 | 42篇 |
2006年 | 55篇 |
2005年 | 45篇 |
2004年 | 47篇 |
2003年 | 51篇 |
2002年 | 42篇 |
2001年 | 40篇 |
2000年 | 29篇 |
1999年 | 33篇 |
1998年 | 24篇 |
1997年 | 22篇 |
1996年 | 21篇 |
1995年 | 23篇 |
1994年 | 24篇 |
1993年 | 26篇 |
1992年 | 22篇 |
1991年 | 25篇 |
1990年 | 16篇 |
1989年 | 25篇 |
1988年 | 19篇 |
1987年 | 17篇 |
1986年 | 22篇 |
1985年 | 17篇 |
1984年 | 24篇 |
1983年 | 14篇 |
1982年 | 14篇 |
1981年 | 10篇 |
1980年 | 7篇 |
1979年 | 12篇 |
1978年 | 12篇 |
1977年 | 6篇 |
1975年 | 5篇 |
1972年 | 5篇 |
1969年 | 5篇 |
排序方式: 共有1704条查询结果,搜索用时 15 毫秒
41.
42.
In a companion paper to “Environmentalism in the USSR: The Opposition to the River Diversion Projects,” two geographers survey the current status of water transfer research after cancellation of the European and Siberian diversion projects and offer a different perspective on the debates leading to that cancellation. Implications of a demand-side approach to Centra! Asian water management problems are then assessed in light of (a) contradictory objectives of expanding irrigated hectarage and mitigating environmental deterioration in the Aral basin and (b) the problematic nature of projected water savings and costs involved in their realization. Journal of Economic Literature, Classification Numbers: 052, 124, 720. 相似文献
43.
44.
45.
Darrell O. Ricke Ph.D. Philip Fremont‐Smith M.S. James Watkins B.S. Sara Stankiewicz M.S. Tara Boettcher B.S. Eric Schwoebel Ph.D. 《Journal of forensic sciences》2019,64(5):1468-1474
High‐throughput sequencing (HTS) of large panels of single nucleotide polymorphisms (SNPs) provides an alternative or complimentary approach to short tandem repeats (STRs) panels for the analysis of complex DNA mixture forensic samples. For STRs, methods to estimate individual contribution concentrations compare capillary electrophoresis peak heights, peak areas, or HTS allele read counts within a mixture. This article introduces three approaches (mean, median, and slope methods) for estimating individual DNA contributions to forensic mixtures for HTS/massively parallel sequencing (MPS) SNP panels. For SNPs, the major:minor allele ratios or counts, unique to each contributor, were compared to estimate contributor proportion within the mixture using the mean, median, and slope intercept for these alleles. The estimates for these three methods were typically within 5% of planned experimental contributions for defined mixtures. 相似文献
46.
This article is the fourth in a series introducing the reader to methods and theories relevant to advancing socio-legal research. They are written for the curious rather than the expert reader and provide illustrations of how the theories, methods, and frameworks have been employed and might be used in your work. This article explores the use of case biography methods for socio-legal studies. Drawing on ‘paths to justice’ studies, network analysis, and legal archaeology, we develop a case study of AC v.Berkshire West Primary Care Trust. We show how the judicial determination of the case suppressed a transgender rights narrative construction of the dispute in favour of one about health care law. Our case biography analysis explores how competing narratives can be traced not only through legal argument and literature, but also through the personnel involved, in ways that are obscured by formal records. Paying attention to biographical features leads to a richer understanding of cases, including the importance of pre- and post-judicial decision-making aspects. 相似文献
47.
48.
49.
In recent years controversy has arisen over whether the rate of women's gun ownership has increased over time. While media reports claimed a rising trend in women's gun ownership, existing scholarly studies found stable rates over time. This paper investigates the issue using the 1973–2002 General Social Survey data. Our bivariate analysis reveals a declining trend in female gun ownership, especially in recent years. The logistic regression results indicate that holding relevant variables constant, the probability of female gun ownership decreases over time. Comparisons are also made with men. Similar results for male gun ownership are obtained. Possible explanations and implications of findings are discussed. 相似文献
50.
Philip Longworth 《The Journal of peasant studies》2013,40(2):183-205
This paper examines the leadership of the Pugachev revolt, the vast peasant uprising which took place in Russia between 1773 and 1775. It is also concerned with certain general issues, particularly those concerning the raising and subsequent sustaining of large‐scale peasant movements in ‘pre‐industrial’ societies where peasant organisations beyond village level are lacking. The Pugachev revolt had peculiarities which are of intrinsic interest, but it also provides significant parallels and contrasts to other peasant uprisings (not only in seventeenth‐ and eighteenth‐century Russia) and generally serves to highlight the problems of the articulation of rural protest in backward societies. 相似文献