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   8904篇
  免费   107篇
各国政治   587篇
工人农民   245篇
世界政治   619篇
外交国际关系   411篇
法律   5174篇
中国共产党   7篇
中国政治   52篇
政治理论   1838篇
综合类   78篇
  2021年   58篇
  2020年   118篇
  2019年   143篇
  2018年   242篇
  2017年   225篇
  2016年   249篇
  2015年   198篇
  2014年   172篇
  2013年   897篇
  2012年   211篇
  2011年   226篇
  2010年   217篇
  2009年   237篇
  2008年   266篇
  2007年   290篇
  2006年   324篇
  2005年   235篇
  2004年   214篇
  2003年   216篇
  2002年   220篇
  2001年   261篇
  2000年   223篇
  1999年   184篇
  1998年   115篇
  1997年   102篇
  1996年   81篇
  1995年   83篇
  1994年   85篇
  1993年   89篇
  1992年   125篇
  1991年   164篇
  1990年   143篇
  1989年   156篇
  1988年   139篇
  1987年   156篇
  1986年   147篇
  1985年   160篇
  1984年   142篇
  1983年   144篇
  1982年   108篇
  1981年   102篇
  1980年   91篇
  1979年   100篇
  1978年   82篇
  1977年   65篇
  1976年   68篇
  1975年   66篇
  1974年   75篇
  1973年   71篇
  1972年   59篇
排序方式: 共有9011条查询结果,搜索用时 15 毫秒
31.
In the summer of 1984, police in Pinellas County, Florida, confiscated six identically colored imported Asian skulls (in a shipping case) from a private citizen. In May 1988, in nearby Hillsborough County, police confiscated a very similar skull from another private citizen, who allegedly had found it in an abandoned house. Aside from slight color differences between the six found in Pinellas County and the one found in Hillsborough County, the skulls are virtually identical in their osteological characteristics and condition and in the vital statistics derived from each. Each skull is as clean and dry as those typically sold by commercial scientific supply outlets in the United States. Each is edentulous (primarily premortem), between approximately 20 and 60 years of age at death, and morphologically Asian. Five of the seven are morphologically male, one is morphologically female, and one is a mosaic with respect to gender-related features. Police, medical examiners, coroners, and forensic anthropologists should be aware of such "souvenir" specimens, in the event that they encounter similar skulls. Discriminant function analyses for race and sex yield considerably conflicting results, which underscores the need for using extreme caution when interpreting forensic science estimates based on such techniques.  相似文献   
32.
When technology is transferred from one context to another, it is an established principle that innovation must take place. Even though a technology is well situated in one context, it must be adoptively redesigned for another. The sharper the difference in contexts, the greater the adaptation. This paper describes a program to transfer technology among a very diverse group of organizations: contractors to the US Department of Defense (DOD). Specifically, it describes how the technology of electronic communication, including electronic- data interchange (EDI), is being pursued by both the DOD and its supporters.  相似文献   
33.
34.
35.
36.
Due to the high cost of health care claims and COBRA's status as remedial legislation, COBRA has generated a significant amount of litigation in recent years. While the early COBRA decisions tended to broaden the law in order to provide a remedy to an otherwise uninsured qualified beneficiary, the recent trend in the case law has been to limit the expansion of COBRA rights based on a narrower construction of the statute. Even so, COBRA still represents a legal minefield for employers. As a result, a careful employer will minimize its exposure by monitoring changes in the law and its interpretation and making appropriate modifications to its COBRA documentation and administration. This article discusses some of the more significant recent changes in the law affecting qualified beneficiaries' COBRA rights--and therefore, employers' exposure.  相似文献   
37.
38.
39.
40.
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