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   11622篇
  免费   276篇
各国政治   474篇
工人农民   909篇
世界政治   542篇
外交国际关系   357篇
法律   7179篇
中国共产党   3篇
中国政治   57篇
政治理论   2301篇
综合类   76篇
  2020年   108篇
  2019年   143篇
  2018年   588篇
  2017年   618篇
  2016年   509篇
  2015年   165篇
  2014年   156篇
  2013年   967篇
  2012年   307篇
  2011年   557篇
  2010年   581篇
  2009年   449篇
  2008年   517篇
  2007年   488篇
  2006年   257篇
  2005年   242篇
  2004年   262篇
  2003年   229篇
  2002年   219篇
  2001年   266篇
  2000年   267篇
  1999年   193篇
  1998年   120篇
  1997年   126篇
  1996年   120篇
  1995年   121篇
  1994年   110篇
  1993年   112篇
  1992年   184篇
  1991年   200篇
  1990年   180篇
  1989年   181篇
  1988年   162篇
  1987年   180篇
  1986年   176篇
  1985年   164篇
  1984年   163篇
  1983年   173篇
  1982年   99篇
  1981年   91篇
  1980年   77篇
  1979年   112篇
  1978年   78篇
  1977年   79篇
  1976年   60篇
  1975年   59篇
  1974年   63篇
  1973年   73篇
  1972年   63篇
  1968年   53篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
151.
The state of physician recruitment changed after the Internal Revenue Service required Hermann Hospital to publish its closing agreement with the IRS. The closing agreement released the long-awaited IRS "Hospital Physician Recruitment Guidelines." The IRS' recently proposed revenue ruling provides additional insight on acceptable physician recruitment practices as well.  相似文献   
152.
While the regulations are revolutionary in their use of "substantial compliance," the interpretation and application of HCFA's new remedial scheme are still uncertain, as states are given broad discretion in defining important terms and in applying and interpreting the criteria to select remedies. Further complicating the issue is the fact that some states, including California, intend to seek waivers from HCFA to substitute their own state enforcement systems for most, if not all, of the new federal system. Based upon these uncertainties, the enforcement of nursing facility standards will likely be in a state of flux for some time to come.  相似文献   
153.
Spragins EE 《Newsweek》1995,125(25):55-6, 58
  相似文献   
154.
155.
156.
157.
158.
159.
"This work...examines the cultural dimension of sexuality and fertility of women from [low-income] sectors in Peru. It intends to explain the cultural processes that fall into the intermediate variables of fertility, such as marriage rate, contraception, breastfeeding and...abortion. These dimensions of sexual and reproductive life are analyzed according to two explanatory dimensions: generation and cultural context of socialization. The general hypothesis is that a cultural process of homogenization of the values and behaviors has been taking place over sexuality, in such a way that the younger generations will show similar standard behaviors and values no matter their context of socialization; in the meantime, in the older groups there will exist contextual differences in these dimensions." (SUMMARY IN ENG)  相似文献   
160.
"This study analyzes the importance of children in the care of elderly populations in rural communities [in Mexico].... In particular, the perception of elders about the value of their children is analyzed, especially the role children play in their economic contribution to the household or their instrumental value to it at different stages of their lives.... With respect [to] the condition in which children support their parents in their old age the economic assistance given was studied too. Finally, the preference regarding family size of those 60 years or older [is] given, as well as the view points of women on the need to control fertility and reduce family size. Three different types of cost are studied: the economic cost of supporting and caring for children, the emotional cost of their upbringing and the health cost of multiple pregnancies and births." (SUMMARY IN ENG)  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