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   17051篇
  免费   714篇
各国政治   668篇
工人农民   599篇
世界政治   1296篇
外交国际关系   526篇
法律   11315篇
中国共产党   1篇
中国政治   102篇
政治理论   3180篇
综合类   78篇
  2021年   97篇
  2020年   271篇
  2019年   333篇
  2018年   360篇
  2017年   455篇
  2016年   452篇
  2015年   341篇
  2014年   417篇
  2013年   1657篇
  2012年   393篇
  2011年   469篇
  2010年   427篇
  2009年   440篇
  2008年   448篇
  2007年   451篇
  2006年   474篇
  2005年   411篇
  2004年   408篇
  2003年   407篇
  2002年   382篇
  2001年   715篇
  2000年   661篇
  1999年   484篇
  1998年   262篇
  1997年   214篇
  1996年   194篇
  1995年   187篇
  1994年   220篇
  1993年   189篇
  1992年   319篇
  1991年   359篇
  1990年   332篇
  1989年   358篇
  1988年   330篇
  1987年   320篇
  1986年   352篇
  1985年   351篇
  1984年   271篇
  1983年   289篇
  1982年   196篇
  1981年   195篇
  1980年   147篇
  1979年   214篇
  1978年   140篇
  1977年   136篇
  1976年   127篇
  1974年   124篇
  1973年   124篇
  1972年   98篇
  1970年   88篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
942.
943.
944.
This article is adapted from a summary of the 1984 annual reports of the Medicare Board of Trustees. It presents the actuarial status of the Hospital Insurance (HI) and the Supplementary Medical Insurance (SMI) Trust Funds. Although the Social Security Amendments of 1983 have made the HI program potentially less vulnerable to excessive rates of growth in the hospital industry by providing the Secretary of Health and Human Services some discretion over the level of payments to hospitals, the Board found the financing schedule for the HI program barely adequate to ensure the payment of benefits through the end of this decade if the assumptions underlying the estimates are realized. The Board found the SMI program to be financially sound, but it noted with concern the rapid growth in the cost of the program and the extent to which general revenues have become SMI's major source of financing. For both HI and SMI, the Board recommends that Congress consider ways to curtail the rapid growth in program costs.  相似文献   
945.
946.
947.
Fino  Susan P. 《Publius》1987,17(1):51-67
The new judicial federalism emphasizes state court relianceon state constitutional grounds for the enhanced protectionof individual rights. Commentary in the legal literature givesthe impression of much state court activism in this area. However,a quantitative analysis of 2,286 equal protection cases decidedby state supreme courts between 1975 and 1984 shows much lowerlevels of the exclusive use of state constitutions. The dataalso reveal significant regional variations in the nature ofequal protection cases filed, the types of alleged discrimination,the use of independent and adequate state grounds, and the frequencyof judicial invalidation of state action. These variations areexplored in terms of political culture, the institutional featuresof the state judiciary, and the content of state bills of rights.  相似文献   
948.
949.
950.
Between 1987 and 1989 there were approximately 5,000 cases of fatal and injury-sustained road traffic accidents, of which 2.3-3.0% were alcohol related (blood alcohol levels greater than the legal limit of 80 mg% ethanol). The offenders of alcohol-related accidents are mostly Chinese (> 79%), male (> 98%), and more often 30-40 years old. The majority of the alcohol-related accidents (> 74%) took place between 8 P.M. and 4 A.M. in fine weather and light traffic. Rear-end, head-on, and side-on collisions comprised > 60% of all the alcohol-related accidents, and losing control of vehicles approximately 30%. Drunken driving cases for the same period that were not accidents showed a number of characteristics similar to those for accidents. In Singapore, motorcycle riders and pedestrians are more prone to road fatality than other road-user groups. International comparisons of road fatalities per 100,000 population gave Singapore one of the lowest accident rates (8.1-8.4) as compared with countries such as Australia, the United Kingdom, the United States, New Zealand, Canada, and Japan.  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