首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1588篇
  免费   52篇
各国政治   60篇
工人农民   51篇
世界政治   77篇
外交国际关系   76篇
法律   921篇
中国共产党   48篇
中国政治   108篇
政治理论   124篇
综合类   175篇
  2023年   5篇
  2022年   10篇
  2021年   16篇
  2020年   29篇
  2019年   29篇
  2018年   27篇
  2017年   26篇
  2016年   36篇
  2015年   30篇
  2014年   30篇
  2013年   94篇
  2012年   56篇
  2011年   63篇
  2010年   71篇
  2009年   64篇
  2008年   63篇
  2007年   64篇
  2006年   65篇
  2005年   71篇
  2004年   66篇
  2003年   62篇
  2002年   53篇
  2001年   120篇
  2000年   79篇
  1999年   75篇
  1998年   35篇
  1997年   7篇
  1996年   4篇
  1995年   8篇
  1994年   5篇
  1993年   7篇
  1992年   23篇
  1991年   18篇
  1990年   39篇
  1989年   26篇
  1988年   31篇
  1987年   24篇
  1986年   15篇
  1985年   14篇
  1984年   8篇
  1983年   9篇
  1982年   11篇
  1981年   8篇
  1980年   4篇
  1979年   11篇
  1978年   7篇
  1973年   2篇
  1971年   4篇
  1970年   3篇
  1968年   2篇
排序方式: 共有1640条查询结果,搜索用时 0 毫秒
991.
中国-东盟农产品产业内贸易水平的实证分析   总被引:2,自引:0,他引:2  
2000年11月在新加坡举行的第四次东盟10 3领导人会议上,中国国务院总理朱镕基首先提出对中国与东盟自由贸易区的可行性进行研究,会后东盟与中国建立了由政府与研究机构组成的专家小组,就该问题进行了联合研究。2001年11月,中国与东盟签署了10年之内  相似文献   
992.
For over a decade Estonia has been untouched by terrorist violence. However, notwithstanding the lack of a viable terrorist threat, the Estonian government adopted extensive counterterrorism measures. What explains the scope of Estonia's counterterrorism measures? The main proposition of this article is that the content of states' counterterrorism policies is shaped by the types of responses adopted by their reference groups. The evidence examined in the study demonstrates that Estonia's primary reference groups, NATO and the EU, have influenced the republic's counterterrorism programme. An unattractive target to terrorists, Estonia adopted broad counterterrorism responses to defend indivisible Euro–Atlantic security and to protect democratic values that terrorists attempt to destroy.  相似文献   
993.
This paper presents a methodology for analysing inter-regional differences and identifying a suitable combination of policies for a set of regions. The methodology is based on the development of a composite index and is applied to compare (i) the members of the Former Soviet Union (FSU) and (ii) the regions of Russia. All variables considered and incorporated in the relevant index are (1) scaled from 0–100, so that the index is independent of units of measurement, and (2) weighted using survey results. According to the adapted regional development index Lithuania is on the top of the ranking followed by Latvia, Estonia, Ukraine, Belarus, Georgia, Russia, Armenia, Moldova, Azerbaijan, Kazakhstan, Uzbekistan, Turkmenistan, Kyrgyzstan, and Tajikistan. The FSU countries are positioned on a regional development index – per capita income mapping to investigate whether emphasis should be placed on regional, environmental or sustainable development policies. Finally, an index that incorporates various socioeconomic components is computed for the regions of Russia which are subsequently classified based on the value of this index. This classification shows that the regions with the best index values are in the Central–Southern part of the country (with the exception of Sackha Republic, which is in the West). The regions with the lower index values are in the Western part of the country and in parts of Central Russia (Mariel republic, Moldovia Republic, Perm region).  相似文献   
994.
995.
生态位理论作为生态学的基本理论已被广泛引用到社会科学领域的研究之中。在相关学者对生态位研究的基础上,通过选择反映产业带生态位的指标因子,根据生态位的计量模型,测算并分析了浙江三大产业带生态位指标因子值,并根据生态位的分析为浙江经济的均衡发展提出了相关的政策建议。  相似文献   
996.
997.
Peer victimization is a significant risk factor for a range of negative outcomes during adolescence, including depression and anxiety. Recent research has evaluated individual characteristics that heighten the risk of experiencing peer victimization. However, the role of emotional clarity, or the ability to understand one’s emotions, in being the target of peer victimization remains unclear. Thus, the present study evaluated whether deficits in emotional clarity increased the risk of experiencing peer victimization, particularly among adolescent girls, which, in turn, contributed to prospective levels of depressive and anxiety symptoms. In the present study, 355 early adolescents (ages 12–13; 53 % female; 51 % African American) who were part of the Adolescent Cognition and Emotion project completed measures of emotional clarity, depressive symptoms, and anxiety symptoms at baseline, and measures of peer victimization, depressive symptoms, and anxiety symptoms at follow-up. Moderation analyses indicated that deficits in emotional clarity predicted greater peer victimization among adolescent girls, but not adolescent boys. Moderated mediation analyses revealed that deficits in emotional clarity contributed to relational peer victimization, which, in turn, predicted prospective levels of depressive and anxiety symptoms among adolescent girls, but not boys. These findings indicate that deficits in emotional clarity represent a significant risk factor for adolescent girls to experience relational peer victimization, which, in turn, contributed to prospective levels of internalizing symptoms. Thus, prevention programs should target deficits in emotional clarity to prevent peer victimization and subsequent internalizing symptoms among adolescent girls.  相似文献   
998.
This study was designed to describe the conflict resolution practices used in Mexican American adolescents’ friendships, to explore the role of cultural orientations and values and gender-typed personality qualities in conflict resolution use, and to assess the connections between conflict resolution and friendship quality. Participants were 246 Mexican American adolescents (M = 12.77 years of age) and their older siblings (M = 15.70 years of age). Results indicated that adolescents used solution-oriented strategies most frequently, followed by nonconfrontation and control strategies. Girls were more likely than boys to use solution-oriented strategies and less likely to use control strategies. Familistic values and gender-typed personality qualities were associated with solution-oriented conflict resolution strategies. Finally, conflict resolution strategies were related to overall friendship quality: solution-oriented strategies were positively linked to intimacy and negatively associated with friendship negativity, whereas nonconfrontation and control strategies were associated with greater relationship negativity.
Kimberly A. UpdegraffEmail:
  相似文献   
999.
网络消费者合同的法律适用   总被引:2,自引:0,他引:2  
现行跨国消费者合同的法律适用的规则,以罗马公约、美国为代表的规定比较灵活.网络的开放性、虚拟性、技术性等特征,使得网络消费者合同产生法律冲突问题,值得进一步研究.  相似文献   
1000.
This method for the determination of haloperidol (HAL) in plasma is based on high-performance liquid chromatography (HPLC) with a reversed-phase column, ODS-C18. HAL is rapidly extracted from human plasma by using Bond Elut C18 cartridge and its recovery is over 90%. The mobile phase is a mixture of 1% acetate/acetonitrile/tetrahydrofuran/triethylamine (69.5: 28.2:1.9:0.4, by vol.). The method is rapid, simple and free from intereferences and gives good precision.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号