全文获取类型
收费全文 | 23308篇 |
免费 | 1345篇 |
专业分类
各国政治 | 987篇 |
工人农民 | 982篇 |
世界政治 | 1538篇 |
外交国际关系 | 800篇 |
法律 | 15779篇 |
中国共产党 | 3篇 |
中国政治 | 123篇 |
政治理论 | 4261篇 |
综合类 | 180篇 |
出版年
2020年 | 472篇 |
2019年 | 513篇 |
2018年 | 665篇 |
2017年 | 688篇 |
2016年 | 776篇 |
2015年 | 594篇 |
2014年 | 628篇 |
2013年 | 2436篇 |
2012年 | 644篇 |
2011年 | 656篇 |
2010年 | 649篇 |
2009年 | 675篇 |
2008年 | 656篇 |
2007年 | 641篇 |
2006年 | 673篇 |
2005年 | 548篇 |
2004年 | 560篇 |
2003年 | 482篇 |
2002年 | 535篇 |
2001年 | 886篇 |
2000年 | 818篇 |
1999年 | 651篇 |
1998年 | 307篇 |
1997年 | 267篇 |
1996年 | 261篇 |
1995年 | 257篇 |
1994年 | 252篇 |
1993年 | 250篇 |
1992年 | 425篇 |
1991年 | 456篇 |
1990年 | 424篇 |
1989年 | 415篇 |
1988年 | 419篇 |
1987年 | 377篇 |
1986年 | 445篇 |
1985年 | 423篇 |
1984年 | 351篇 |
1983年 | 337篇 |
1982年 | 241篇 |
1981年 | 222篇 |
1980年 | 194篇 |
1979年 | 318篇 |
1978年 | 173篇 |
1977年 | 143篇 |
1976年 | 125篇 |
1975年 | 153篇 |
1974年 | 196篇 |
1973年 | 150篇 |
1972年 | 135篇 |
1971年 | 118篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
141.
Back to the future of ‘one logic or two’?: forward to the past of ‘anarchy versus racist hierarchy’?
John M Hobson 《Cambridge Review of International Affairs》2007,20(4):581-597
This article argues that while the attempt by Alex Callinicos to construct a non-reductionist approach for theorizing the international is brave, it falls short of the target due, in part, to the failure to look in the right place for a non-reductionist Marxism. In taking us ‘back to the future’ of the debate on ‘one logic or two?’ (‘economics’ or ‘geopolitics and economics’), the quest can at best result only in the construction of a thin materialist reductionism. This article develops an approach that takes norms and (racist) identity seriously—one that simultaneously reconfigures our conception of the international as a hierarchy rather than as a pure anarchy, thereby prompting a reconsideration of Callinicos's commitment to a neorealist anarchic conception of the international. This article closes by suggesting that the Eurocentrism of much Marxist International Relations scholarship obscures the role of non-Western resistance in the making of global politics. 相似文献
142.
N C Martin A A Pirie L V Ford C L Callaghan K McTurk D Lucy D G Scrimger 《Science & justice》2006,46(3):179-184
In the forensic science laboratory, the recovery of spermatozoa from vaginal swabs, or vaginal cells from penile swabs, can help determine if sexual intercourse may have taken place. There are several methods used to recover spermatozoa and cells from the swabs before visualisation on a microscope slide and most of these methods use water. Phosphate buffered saline (PBS) is a non-toxic solution used in many biological laboratories. Unlike water, PBS prevents cells rupturing or shrivelling up due to osmosis. This study demonstrates that PBS can be used for the extraction of spermatozoa and cells from swabs and that PBS does not affect subsequent DNA profiling. 相似文献
143.
Toxicologic findings in the USS Iowa disaster. 总被引:5,自引:0,他引:5
The toxicologic results from the 47 victims of the explosion on the USS Iowa are presented. Good correlation between carboxyhemoglobin saturations and cause of death was found. There were no correlations between blood cyanide concentrations and causes of death. Volatile analysis suggested postmortem ethanol production rather than antemortem ethanol ingestion. No drugs except nicotine were detected in any of the victims. 相似文献
144.
145.
B G Rabe 《Journal of health politics, policy and law》1992,17(1):119-142
Hazardous waste management poses increasing problems for Canadian provinces and American states, given the vast quantities and types of wastes generated and the virtual inability to open new storage, treatment, or disposal facilities. The Canadian experience is very similar to the American one in many respects, except for the fact that three provinces (Alberta, Manitoba, and Quebec) have devised alternative approaches to siting that appear successful in moving beyond the political gridlock so common on this issue. In each of these cases, traditional, top-down approaches to siting have been eschewed in favor of a more comprehensive approach that includes extensive public participation, economic and social compensation packages, formal partnerships between public and private organizations, and direct links between siting proposals and other aspects of waste management, including waste reduction, recycling, and export/import control. 相似文献
146.
147.
In this study, a new method was developed for the impurity profiling of illicit MDMA tablets. The extraction efficiency, linearity, repeatability and reproducibility of the method were evaluated. Eighty two MDMA tablets coming from presumed unrelated large seizures in 2004 (n >500 tablets) were analyzed by gas chromatography mass spectrometry (GC-MS) in order to assess the discrimination power of the method. The latter was found to be practical, robust, relatively easy to perform, highly discriminative and yielding good chromatography. In addition, some new impurities were detected and identified. Their chemical structures and mass spectra are reported. 相似文献
148.
Carola Müller 《Revista de derecho y genoma humano》2005,(22):133-151
The legislator, in the German Federal Republic, has opted for a specific legal solution in relation to the protection of the embryo. Carola Müller, in this article, describes this regulation as well as the reasons that have led to its adoption. The article finishes with an exposition of the existing social discussion in German society and the effect that the law has had. 相似文献
149.
We consider the problem of drawing inferences within a legal framework when a person is a suspect for two separate offences. Although we are primarily concerned with scientific evidence the issue inevitably arises as to how that evidence interacts with other, non-scientific evidence. We show that, in this particular context, the evidence can be conveniently classified into three categories that concern, respectively: the first crime only; the second crime only; and evidence that relates to similarities between the two crimes. Two case examples are considered and we consider DNA, fibres and eyewitness evidence. These are viewed from the perspective of a prosecutor who has to decide whether or not to charge a suspect with one or both crimes. Graphical sensivity analyses are presented which have features that are not intuitively obvious. 相似文献
150.
Silvina J. Vilas-Ghiso Diana M. Liverman 《International Environmental Agreements: Politics, Law and Economics》2007,7(2):137-169
More than a decade after NAFTA (North American Free Trade Agreement) entered into force, the environmental effects of agricultural
trade liberalization in Mexico are still controversial, emerging, and not fully understood. This paper contributes to the
literature that aims to explore trends in input use in the agricultural sector in Mexico during the post-NAFTA period among
both commercial/industrial and traditional/rainfed farmers, and examines the influence of the national and multilateral institutional
framework on these outcomes. We decompose the post-NAFTA agricultural production data into scale, technique and composition
effects to estimate the impact that trade liberalization has had on the use of fertilizer and land use, two key agricultural
inputs for which reliable aggregate data is available. We conclude that among commercial farmers patterns of crop type specialization
and significant technological improvements have led to some declines in fertilizer use but they have been offset by growth
in fertilizer use associated with growing agricultural output. Among traditional farmers increased output and specialization
in land-intensive grain crops are contributing to an increase in land under cultivation and technological improvements show
the potential, but not yet not the strength, to counteract these effects. We analyse the environmental institutional framework
and rural development plans, observing that institutional weaknesses have, in several instances, reduced the environmental
benefit of technique and composition effects. We conclude with recommendations about how the Mexican agricultural sector might
reap the environmental benefits of international agricultural trade. 相似文献