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   7381篇
  免费   174篇
各国政治   407篇
工人农民   207篇
世界政治   466篇
外交国际关系   288篇
法律   4638篇
中国共产党   1篇
中国政治   20篇
政治理论   1432篇
综合类   96篇
  2020年   64篇
  2019年   85篇
  2018年   123篇
  2017年   136篇
  2016年   157篇
  2015年   109篇
  2014年   131篇
  2013年   802篇
  2012年   203篇
  2011年   197篇
  2010年   154篇
  2009年   171篇
  2008年   200篇
  2007年   174篇
  2006年   191篇
  2005年   145篇
  2004年   150篇
  2003年   155篇
  2002年   164篇
  2001年   304篇
  2000年   276篇
  1999年   222篇
  1998年   82篇
  1997年   105篇
  1996年   80篇
  1995年   82篇
  1994年   93篇
  1993年   80篇
  1992年   159篇
  1991年   178篇
  1990年   157篇
  1989年   170篇
  1988年   149篇
  1987年   142篇
  1986年   168篇
  1985年   127篇
  1984年   124篇
  1983年   129篇
  1982年   80篇
  1981年   78篇
  1980年   58篇
  1979年   110篇
  1978年   63篇
  1977年   62篇
  1976年   56篇
  1975年   66篇
  1974年   81篇
  1973年   76篇
  1972年   69篇
  1971年   60篇
排序方式: 共有7555条查询结果,搜索用时 15 毫秒
891.
Congress plays a central role in national environmental policy formation but appears ill equipped to set policy priorities and devise integrative legislation. Fragmentation of authority among a multiplicity of committees and subcommittees, especially in the House, contributes to these problems. This pattern is evident in the evolution of Superfund, the national program to clean up abandoned hazardous waste sites. The prolonged process of reauthorization in the 1980s contributed to serious program delay and failed to resolve a number of fundamental questions concerning the national cleanup effort. Institutional reforms could contribute to a more effective congressional role in future environmental policy deliberations.  相似文献   
892.
The purpose of this study is to examine the participation of criminology and criminal justice graduate departments at the 1977-1979 American Society of Criminology meetings. Results show that institutional prestige. not productivity, is the leading predictor of meeting participation. In addition, meeting participation does not appear to be influenced by meeting site. Finally, it is suggested that criminologists focus more attention upon professional activities in order to facilitate our understanding of criminology as a science.  相似文献   
893.
Principally new, simple and objective method for investigation of human hair density is suggested. Hair identity in relation to a concrete person can be confirmed or excluded by statistical processing of the results obtained.  相似文献   
894.
895.
896.
897.
898.
Prior research has not examined the validity of Uniform Crime Report (UCR) “reported crime” figures on the offense of arson. The reporting of arson is distinguished from that of other index offenses by the requirement that an investigation occur that establishes that a fire has been purposefully set or attempted; the counting of all arsons regardless of their occurrence with other offenses; the detection and reporting of the offense by noncitizens; and the infrequent existence of exclusive police jurisdiction. Because of these unique characteristics, past approaches to assessing the validity of data on index crimes, such as a comparison with victim reports of crime, are not possible or appropriate. In this study UCR data on arson are compared with data obtained through a national survey (n=683) of fire departments. The comparisons indicate that UCR data are significantly lower than the rate of arson reported by local fire departments both overall and across all regions of the country.  相似文献   
899.
900.
This essay examines the ways in which women lawyers of two generation–the pioneer generation of the 1880s and the "new woman" generation of the 1910s–confronted the dilemma of marriage and career. Members of the Equity Club in the 1880s revealed three distinct sets of attitudes toward balancing marriage and career: the separatist approach that a professional woman must remain single; the Victorian attitude that a married woman must sacrifice her career; and the integrated approach that a woman could have both marriage and career. Women lawyers surveyed by the Bureau of Vocational Information in 1920 revealed that the "new woman" generation of women lawyers lived in an era of transition. While they shared the same separatist, Victorian, and integrated views toward marriage and law practice as did women lawyers in the 1880s, they also embraced the new values of the early 20th century which shaped both the contours of the legal profession and the parameters of women's lives. Set within the context of the new values of the era, the separatist, Victorian, and integrated approaches to resolving the dilemma of marriage and career, which were originally formulated by women lawyers in the late 19th century, assumed new meanings for women lawyers in the early 20th century.  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