全文获取类型
收费全文 | 27079篇 |
免费 | 1595篇 |
专业分类
各国政治 | 1072篇 |
工人农民 | 1244篇 |
世界政治 | 1864篇 |
外交国际关系 | 821篇 |
法律 | 18650篇 |
中国共产党 | 3篇 |
中国政治 | 183篇 |
政治理论 | 4676篇 |
综合类 | 161篇 |
出版年
2020年 | 528篇 |
2019年 | 581篇 |
2018年 | 815篇 |
2017年 | 804篇 |
2016年 | 931篇 |
2015年 | 713篇 |
2014年 | 741篇 |
2013年 | 2642篇 |
2012年 | 793篇 |
2011年 | 857篇 |
2010年 | 835篇 |
2009年 | 853篇 |
2008年 | 731篇 |
2007年 | 705篇 |
2006年 | 810篇 |
2005年 | 979篇 |
2004年 | 724篇 |
2003年 | 567篇 |
2002年 | 582篇 |
2001年 | 982篇 |
2000年 | 860篇 |
1999年 | 701篇 |
1998年 | 364篇 |
1997年 | 287篇 |
1996年 | 281篇 |
1995年 | 311篇 |
1994年 | 292篇 |
1993年 | 277篇 |
1992年 | 492篇 |
1991年 | 516篇 |
1990年 | 492篇 |
1989年 | 489篇 |
1988年 | 488篇 |
1987年 | 425篇 |
1986年 | 494篇 |
1985年 | 495篇 |
1984年 | 436篇 |
1983年 | 381篇 |
1982年 | 289篇 |
1981年 | 257篇 |
1980年 | 244篇 |
1979年 | 345篇 |
1978年 | 198篇 |
1977年 | 161篇 |
1976年 | 134篇 |
1975年 | 163篇 |
1974年 | 198篇 |
1973年 | 146篇 |
1972年 | 133篇 |
1971年 | 126篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
161.
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
162.
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
163.
R. CHRISTOPHER SPICER CIH CHMM HARRY J. GANGLOFF PH.D. Neil Feldscher CIH CSP 《环境索赔杂志》2005,17(1):13-28
Bioaerosol data is often used in cases of building mold infestation alleging damage or adverse health effects upon occupants, despite the lack of consistent sampling and analytical protocols and numerical health-based standards. The most fundamental problem in these scenarios is defining a “significant” difference between a suspect indoor environment and the reference environment, regardless of the type of sampling and analysis utilized. Data interpretation focused upon differences in absolute numerical concentrations of fungi is subject to wide differences in expert opinion. On the other hand, an objective quantification of differences can be expressed in terms of probability and better meets criteria established in evidentiary rules. 相似文献
164.
Ministerialrat a. D. Prof. Dr. Ernst-Rainer Hönes 《Natur und Recht》2005,27(5):279-285
Der Begriff der Landeskultur umfasst alle Maßnahmen zur Verbesserung der land- und forstwirtschaftlichen Nutzung des Bodens einschließlich der Erhaltung der Kulturlandschaft. Landeskultur ist somit alles Planen und Handeln mit dem Ziel, die Umwelt als gegebenes Naturraumpotential, insbesondere Wasser, Boden, Luft und die dazugehörigen Natur-, Kultur- und Sachgüter optimal zu erhalten, gestalten und rationell zu nutzen sowie dieses Potential mit bestmöglicher Qualität als natürliche und kulturelle Lebensgrundlage für die Allgemeinheit nachhaltig zu sichern. Landeskultur dient somit auch der Belebung und Werterhöhung der gebauten und gepflanzten Umwelt. Dies schließt auch und gerade die kulturelle Seite einschließlich Kulturlandschaften mit ein. Dabei ist es bis zur Überprüfung durch das BVerfG noch hinnehmbar, dass der Begriff „Landeskultur“ in Art. 89 Abs. 3 GG wegen der Mischkompetenz von Bund und Land vom BVerwG enger ausgelegt wird als in anderen Rechtsvorschriften. 相似文献
165.
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
166.
167.
168.
Washington University v. Catalona revolves around ownership of tissue samples provided by patients for research purposes, raising significant ethical and legal questions concerning patient rights, current human research practices, and the treatment of samples as capital resources by the research institution. 相似文献
169.
Here we consider two ways that nanomedicine might be disruptive. First, low-end disruptions that are intrinsically unpredictable but limited in scope, and second, high end disruptions that involve broader societal issues but can be anticipated, allowing opportunity for ethical reflection. 相似文献
170.
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