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   21009篇
  免费   442篇
各国政治   870篇
工人农民   1432篇
世界政治   1255篇
外交国际关系   930篇
法律   11836篇
中国共产党   1篇
中国政治   93篇
政治理论   4924篇
综合类   110篇
  2023年   68篇
  2021年   82篇
  2020年   197篇
  2019年   253篇
  2018年   1524篇
  2017年   1490篇
  2016年   1324篇
  2015年   279篇
  2014年   331篇
  2013年   1670篇
  2012年   499篇
  2011年   1228篇
  2010年   1275篇
  2009年   874篇
  2008年   1060篇
  2007年   1081篇
  2006年   410篇
  2005年   457篇
  2004年   580篇
  2003年   549篇
  2002年   408篇
  2001年   432篇
  2000年   406篇
  1999年   321篇
  1998年   192篇
  1997年   168篇
  1996年   187篇
  1995年   188篇
  1994年   188篇
  1993年   139篇
  1992年   223篇
  1991年   246篇
  1990年   196篇
  1989年   217篇
  1988年   198篇
  1987年   218篇
  1986年   202篇
  1985年   215篇
  1984年   186篇
  1983年   208篇
  1982年   143篇
  1981年   149篇
  1980年   108篇
  1979年   144篇
  1978年   115篇
  1977年   106篇
  1976年   86篇
  1975年   60篇
  1974年   74篇
  1973年   72篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
132.
Analyzes the results of forensic medical examinations of the corpses after hanging. The findings were as follows: two strangulation grooves are seen on the corpse's neck after hanging, that are similar to the grooves seen after strangulation with a loop and subsequent hanging of a corpse; the presence of bruises on the neck, along with the strangulation grooves, is indicative of a strangulation made by the hands, whereas half-moon shaped bruises may be self-inflicted during hanging.  相似文献   
133.
134.
135.
136.
Social scientists have theorized about the cycle of domestic violence in family abuse. Little research has addressed dating violence as a consequence to the experience of domestic violence by children. This article deals with the self-reported experience of dating violence by high school students from abusive and nonabusive households. A survey was conducted of 1,353 students in a rural area of North Dakota. Results indicated that students from abusive households showed significantly higher incidence of dating violence than those from homes where no abuse was evident. However, less than one in five of the students from abusive home reported dating violence, providing little support for the cycle of violence hypothesis. Students from abusive homes viewed violence as negatively as students from nonabusive homes. Thus, while there are significant differences between the two groups, there are also important similarities. Although there is apparently a greater risk of dating violence among students who have experienced violence at home, these data do not support the idea of an inescapable pattern of violence among adolescents who have experienced violence themselves.  相似文献   
137.
This paper describes a collaborative exercise intended to demonstrate whether uniformity of DNA profile results could be achieved between different European laboratories. It was shown that this goal can be obtained provided that a common protocol is followed (specifically the use of a common electrophoretic buffer as being the most important parameter). Generally, lower molecular weight loci (with lower molecular weight fragments) such as YNH24 perform better than higher molecular weight loci such as MS43a. The results of the exercise are discussed in relation to the objectives of the European DNA profiling group (EDNAP).  相似文献   
138.
The authors examine the characteristics of threatening and otherwise inappropriate communications sent to members of the U.S. Congress by a sample of 86 subjects, 20 of whom threatened assassination. We quote excerpts from these letters and provide quantitative data on such variables as the volume, duration, form, and appearance of such communications; the enclosures; the subjects' perceived relationships to the recipients; the thematic content of the communications; and the messages and threats communicated. Comparisons between 43 subjects who pursued encounters with members of Congress and 43 who did not revealed 17 factors associated with such pursuit. In this population, threateners were significantly less likely to pursue an encounter than inappropriate letter writers who did not threaten, regardless of the type of threat or the harm threatened. Inappropriate letters to members of Congress are compared with those directed to Hollywood celebrities. Mentally disordered persons writing to public figures often mention and sometimes threaten public figures other than those to whom the letters are addressed, which raises important issues regarding notification of endangered third parties and the sharing of information among protective agencies.  相似文献   
139.
140.
This introduction presents the core concepts that shape this special issue on the impact of violence and the processes of development in Central and South America. The understanding of development is considered in terms broader than the economic context alone, in order to assess wider social and political aspects. With a similarly expansive scope, forms of violence are addressed that range from direct physical harm and bodily attack to the often more subtle aggression of racialised abuse or the pressures on community-centred production from dominant market forces. In these contexts, violence, economic initiatives, and political allegiances form unintended and often dangerous networks of consequence for development matters. All the articles in this volume exemplify further the spatial environments of violence and diverse ‘landscapes of fear’ that shape our existence and help to define our actions, territories, and understanding of what happens around us.  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