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   18011篇
  免费   325篇
各国政治   488篇
工人农民   1456篇
世界政治   767篇
外交国际关系   577篇
法律   10977篇
中国共产党   34篇
中国政治   127篇
政治理论   3773篇
综合类   137篇
  2021年   62篇
  2020年   149篇
  2019年   131篇
  2018年   1424篇
  2017年   1388篇
  2016年   1240篇
  2015年   283篇
  2014年   237篇
  2013年   855篇
  2012年   413篇
  2011年   1146篇
  2010年   1175篇
  2009年   814篇
  2008年   1026篇
  2007年   993篇
  2006年   332篇
  2005年   359篇
  2004年   461篇
  2003年   375篇
  2002年   264篇
  2001年   354篇
  2000年   330篇
  1999年   258篇
  1998年   166篇
  1997年   122篇
  1996年   159篇
  1995年   142篇
  1994年   151篇
  1993年   128篇
  1992年   199篇
  1991年   250篇
  1990年   213篇
  1989年   198篇
  1988年   221篇
  1987年   202篇
  1986年   221篇
  1985年   192篇
  1984年   172篇
  1983年   168篇
  1982年   106篇
  1981年   122篇
  1980年   102篇
  1979年   107篇
  1978年   96篇
  1977年   88篇
  1976年   65篇
  1975年   64篇
  1974年   65篇
  1973年   77篇
  1969年   50篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
961.
962.
During 1995 and 1996, the Congress and the president gave considerableattention to block granting over $200 billion in federal intergovernmentalgrant programs, ranging from large entitlement programs to smallerprograms in housing, vocational education, and law enforcement.In the end, the record of successes was modest—highlightedby welfare-reform legislation that, in some respects, resembleda block grant and in others did not. The contrast between processand outcomes in this most recent block-grant cycle reinforcesthe point that block-grant prospects depend on fundamental fiscal,political, and programmatic forces that are separate from federalismconsiderations. The states' maturation as leaders in many domesticpolicy areas strengthens the performance rationale for blockgrants. The federal fiscal crisis will continue to stimulateinterest in block grants among fedeal as well as state policymakers.The proposals offering the greatest fiscal advantage (i.e.,Medicaid and AFDC) may not be those with the strongest performancerationale. Although recent congressional developments suggeststronger support for states, nationalizing forces remain embeddedin domestic policymaking. Thus, substantial questions remain,posing obstacles to a fundamental and sustained role for blockgrants in the federal system.  相似文献   
963.
Smoking bans are gaining widespread support in the United States and other countries. While supporters argue that bans are necessary to resolve market failures associated with negative externalities, the Coase Theorem predicts that, under various conditions, private markets internalize negative externalities. We examine the smoking issue within the framework of the Coase Theorem and hypothesize that smoking bans misallocate air space resources shared by smokers and nonsmokers. Because smoking bans shift ownership of scarce resources, they are also hypothesized to transfer income from one party (smokers) to another party (nonsmokers). Supporting evidence for these hypotheses is provided by an examination of a comprehensive smoking ban imposed in San Luis Obispo, CA.  相似文献   
964.
965.
The following is an edited version of the proceedings of a symposium sponsored by the Middle East Policy Council on May 26, 1994, in the Hart Senate Office Building in Washington, DC. Former Senator George McGovern, President of the Council, introduced the panel; Thomas R. Mattair, the Councis Director of Research and Policy Analysis, was the organizer and moderator; Michael Collins Dunn, Senior Analyst of The International Estimate, Inc., and editor of its biweekly newsletter, The Estimate, was the discussant.  相似文献   
966.
967.
Body image and weight loss beliefs and behaviors were assessed in 341 female and 221 male high school students. Estimates of body dissatisfaction varied depending on the measurement strategy used. Despite having similar weight distributions around the expected norm, girls were significantly more dissatisfied with their bodies than boys. Body Mass Index was positively related to body dissatisfaction in girls and boys, while higher exercise levels were related to higher body satisfaction in boys. Nearly two-thirds of girls and boys believed being thinner would have an impact on their lives, but the majority of girls believed this would be positive while the majority of boys believed this would be negative. Thirteen percent of female subjects reported using one or more extreme weight loss behavior at least weekly. Beliefs regarding the effectiveness of different weight loss measures were assessed. Weight loss behaviors in this Australian sample appear similar to comparable U.S. samples.Received Ph.D. from University of Tasmania. Main research interest in body image, weight loss behaviors, and eating disorders.Received Ph.D. from University of Connecticut. Main research interest in body image, eating disorders and weight loss behaviors.Dietitian degree from Melbourne University, Melbourne. Main research interest in eating practices and clinical outcome.M.D. from University of Melbourne, D.P.M. from U.K. FRC Psych. Main research interests in eating disorders.B.B.Sc.(Hons.) received from La Trobe University, Melbourne, B.A. received from University of Minnesota, Duluth. Main research interest in attitudes and attributions.B.A. Received from University of Minnesota, Duluth. Main research interest in adolescence and eating disorders.  相似文献   
968.
969.
970.
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