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   9351篇
  免费   292篇
各国政治   497篇
工人农民   417篇
世界政治   579篇
外交国际关系   292篇
法律   5783篇
中国共产党   3篇
中国政治   59篇
政治理论   1925篇
综合类   88篇
  2020年   110篇
  2019年   155篇
  2018年   218篇
  2017年   243篇
  2016年   232篇
  2015年   161篇
  2014年   165篇
  2013年   1059篇
  2012年   237篇
  2011年   242篇
  2010年   203篇
  2009年   228篇
  2008年   283篇
  2007年   236篇
  2006年   273篇
  2005年   236篇
  2004年   245篇
  2003年   211篇
  2002年   224篇
  2001年   278篇
  2000年   277篇
  1999年   201篇
  1998年   129篇
  1997年   127篇
  1996年   122篇
  1995年   104篇
  1994年   100篇
  1993年   119篇
  1992年   194篇
  1991年   208篇
  1990年   185篇
  1989年   187篇
  1988年   168篇
  1987年   189篇
  1986年   186篇
  1985年   175篇
  1984年   167篇
  1983年   170篇
  1982年   105篇
  1981年   96篇
  1980年   83篇
  1979年   117篇
  1978年   81篇
  1977年   79篇
  1976年   65篇
  1975年   62篇
  1974年   63篇
  1973年   77篇
  1972年   65篇
  1968年   53篇
排序方式: 共有9643条查询结果,搜索用时 15 毫秒
181.
182.
183.
184.
185.
186.
187.
Liberal distributional values, the increasingly powerful capacity of medicine to provide more and better care, and concern about the health hazards of an industrial society fueled the vast expansion of the health care sector during the last 20 years. That growth was facilitated by a growing economy. The current health policy debate at one level reexamines the distributional bases of entitlement programs, and at another seeks alternative resource allocation mechanisms to reduce the cost of health care. This article has two themes. First, distributional and allocational policies are shown to be intrinsically related, so that the health policy debate is fundamentally a clash between liberal and libertarian values. Second, the inexorable social forces driving the health care system are shown to be the aging of the population and the rapid expansion of technology. The resulting dynamics imply the further growth of the health sector, now in the environment of a sluggish economy. Future policies will have to struggle with how to ration scarce health resources and how to reorient the health care sector to the problems of the aged.  相似文献   
188.
Although it is difficult to ascertain whether or not the nation faces an oversupply of physicians in the coming decades, there is no doubt that a health care system can be operated more effectively with a taut supply of medical personnel than with a loose supply. The perception of severe specialty and geographic imbalance, which informed national health policy during the 1960s and 1970s, has been modified by evidence of a significant redistribution in the supply. Increasing numbers of practitioners are likely to effect further escalation in the costs of physician services and total expenditures for health care, even if--in conformity with classical laws of supply and demand--individual physicians' incomes and the relative economic advantage of the profession were to decline. Since the objective of improved access has to a considerable extent been realized, the principal benefit of the loosened supply in the future will be to facilitate the initiation of innovative practice modes and alternative health care delivery systems that offer the potential of improved efficiency and quality.  相似文献   
189.
190.
This article examines whether the small number of Social Security beneficiaries living abroad enjoy a higher standard of living than they would with the same benefits if they lived in the United States. The article addresses this question using two methods. First, absolute comparisons of U.S. dollar purchasing power abroad are made using "purchasing power parities," a method recently developed to allow international comparisons of real standards of living. Second, the effects of changes in Social Security benefit levels, exchange rates, and rates of inflation on the relative value of benefits abroad are measured. Both methods show considerable instability in purchasing power of Social Security benefits in the 1970's. Although beneficiaries in 1970 generally could live better abroad than in the United States, this advantage eroded considerably during the 1970's, followed by some improvement in 1981-82.  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