全文获取类型
收费全文 | 2219篇 |
免费 | 120篇 |
专业分类
各国政治 | 191篇 |
工人农民 | 136篇 |
世界政治 | 250篇 |
外交国际关系 | 157篇 |
法律 | 1172篇 |
中国共产党 | 2篇 |
中国政治 | 8篇 |
政治理论 | 401篇 |
综合类 | 22篇 |
出版年
2024年 | 3篇 |
2023年 | 32篇 |
2022年 | 20篇 |
2021年 | 43篇 |
2020年 | 78篇 |
2019年 | 100篇 |
2018年 | 137篇 |
2017年 | 145篇 |
2016年 | 153篇 |
2015年 | 93篇 |
2014年 | 124篇 |
2013年 | 374篇 |
2012年 | 120篇 |
2011年 | 94篇 |
2010年 | 65篇 |
2009年 | 46篇 |
2008年 | 75篇 |
2007年 | 91篇 |
2006年 | 65篇 |
2005年 | 54篇 |
2004年 | 76篇 |
2003年 | 48篇 |
2002年 | 34篇 |
2001年 | 38篇 |
2000年 | 37篇 |
1999年 | 20篇 |
1998年 | 17篇 |
1997年 | 12篇 |
1996年 | 6篇 |
1995年 | 14篇 |
1994年 | 7篇 |
1993年 | 10篇 |
1992年 | 7篇 |
1991年 | 10篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 4篇 |
1987年 | 8篇 |
1986年 | 4篇 |
1985年 | 8篇 |
1984年 | 6篇 |
1982年 | 5篇 |
1977年 | 3篇 |
1975年 | 3篇 |
1974年 | 4篇 |
1972年 | 5篇 |
1967年 | 6篇 |
1965年 | 3篇 |
1964年 | 2篇 |
1963年 | 2篇 |
排序方式: 共有2339条查询结果,搜索用时 0 毫秒
131.
132.
133.
Beom Jun Ko SungIll Suh Yong Jun Suh Moon Kyo In Sung-Hong Kim 《Forensic Science International Supplement Series》2007,170(2-3):142
Impurity profiling and classification of seized methamphetamine may play an important role in the interpretation of analytical results, the determination of the synthetic method employed, and the criminal investigations of drug traffic routes. Our study is focused on classifying seized methamphetamine samples according to the groups sorted by the types and quantities of impurities present in illicit methamphetamine samples. The samples (100 mg) were dissolved in 2 mL of potassium phosphate buffer (pH 7.0), extracted with 200 μL of ethyl acetate under basic condition, and then analyzed by gas chromatography-mass spectrometry (GC–MS) with a DB-1 capillary column (30 m × 0.25 mm i.d., 0.25 μm). Five impurities are used as criteria for the classification of seized methamphetamine samples by Emde and Nagai method. A total of fifty-two samples of seized methamphetamine were analyzed by GC–MS and classified by five organic impurities, and then sorted into four groups, which are Nagai type, Emde Type, Undetermined I type, and Undetermined II type. 相似文献
134.
Philippe Frouté 《European Journal of Law and Economics》2007,24(3):201-214
Although many works support creditor friendly bankruptcy laws, an evolution towards debtor friendly systems is at work. This
paper proposes a theoretical ground to meet this paradox. It reconsiders the economic role of bankruptcy law by stressing
on the courts’ production of information. It reveals that the transmission of a lenient signal by judges makes it possible
to reduce the hazard that bad risks seek to avoid going on trial. Thus, it shows that debtor friendly bankruptcy laws are
not systematically opposed to creditors’ interests. They reduce the risk of the economy and contribute to the improvement
of the global efficiency.
相似文献
135.
We consider a system made up of two committees, with overlapping membership but with different rules for passing decisions; the passage of a joint resolution requires separate approval by each committee. We show that it is possible for one voter a to be stronger (have greater voting power) than another voter b in both of the two committees, while in the two-committee system (considered as a single composite entity) b is stronger than a. We argue that this apparently paradoxical phenomenon is inherent in the structure of the decision-making system in question, rather than being an artefact of any particular index used to measure voting power. 相似文献
136.
137.
138.
Statement of Purpose: A decline in state-sponsored terrorism has caused many terrorist organizations to resort to criminal
activity as an alternative means of support. This study examines terrorists' involvement in a variety of crimes ranging from
motor vehicle violations, immigration fraud, and manufacturing illegal firearms to counterfeiting, armed bank robbery, and
smuggling weapons of mass destruction. Special attention is given to transnational organized crime. Crimes are analyzed through
the routine activity perspective and social learning theory. These theories draw our attention to the opportunities to commit
crime and the criminal skills necessary to turn opportunity into criminality. Through these lenses, the research appraises
the “successes” and “failures” of terrorists' engagement in crime. Because “failures” can result from law enforcement efforts
to (1) interrupt criminal skill development, and/or (2) remove criminal opportunities via technologies and transportation
systems, the research represents a best practices approach to the study and control of terrorism.
This project was supported by Grant No. 2003-DT-CX-0002 awarded by the National Institute of Justice, Office of Justice Programs,
U.S. Department of Justice. Points of view in this document are those of the author and do not necessarily represent the official
position or policies of the U.S. Department of Justice. 相似文献
139.
140.
Stéphane Lefebvre 《Intelligence & National Security》2019,34(1):62-77
This article discusses the role of the discourse of law in legitimizing the protection of intelligence secrets. It draws on examples from the United Kingdom and the United States to illustrate rhetorical regularities with respect to the need to protect intelligence officers, agents, sources and methods, the effectiveness of intelligence agencies, international intelligence relationships and the effects of a mosaic of disclosed information. It concludes that judges produce specialized knowledge on state secrecy that plays a part in shaping the understanding of state secrecy in society. 相似文献