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   11711篇
  免费   627篇
各国政治   517篇
工人农民   424篇
世界政治   961篇
外交国际关系   371篇
法律   7649篇
中国共产党   1篇
中国政治   57篇
政治理论   2302篇
综合类   56篇
  2021年   67篇
  2020年   208篇
  2019年   260篇
  2018年   264篇
  2017年   335篇
  2016年   349篇
  2015年   269篇
  2014年   314篇
  2013年   1190篇
  2012年   268篇
  2011年   338篇
  2010年   305篇
  2009年   335篇
  2008年   326篇
  2007年   297篇
  2006年   293篇
  2005年   282篇
  2004年   289篇
  2003年   266篇
  2002年   270篇
  2001年   508篇
  2000年   465篇
  1999年   316篇
  1998年   202篇
  1997年   168篇
  1996年   136篇
  1995年   128篇
  1994年   161篇
  1993年   146篇
  1992年   216篇
  1991年   242篇
  1990年   229篇
  1989年   229篇
  1988年   224篇
  1987年   204篇
  1986年   244篇
  1985年   222篇
  1984年   171篇
  1983年   183篇
  1982年   124篇
  1981年   124篇
  1980年   93篇
  1979年   143篇
  1978年   80篇
  1977年   77篇
  1976年   78篇
  1974年   79篇
  1973年   74篇
  1972年   72篇
  1970年   48篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
152.
153.
154.
Data from the 1987 National Health and Fertility Survey were used to explore trends and differentials in unwanted fertility in Mexico. Women were classified in three educational categories: illiterate or incomplete primary, complete primary or some secondary, and complete secondary or more. The four urbanization categories were: under 2500; 2500 to 19,999; 20,000 and more; and metropolitan areas. The place of primary socialization was the place of residence until age 12. Two categories of employment of household head were included, agricultural or nonagricultural. The categories for mother's employment considered employment until the union and employment between the time of union and the birth of the first child. The proportion of births that were unwanted was estimated by calculating the total fertility rate for the year before the survey and comparing it to desired family size. The "total desired family size" was 2.4 for the entire sample. In other words, nearly 37% of the total fertility rate was undesired. The greatest differentials in percentages of undesired fertility were found in educational categories. 40.7% of the total fertility rate in the least educated groups vs. 13.6% in the most educated groups was undesired. Differentials in the other categories ranged from 1.9 for a history of employment before the birth of the first child to 8.8 for agricultural or nonagricultural employment of the household head. When effects of education were controlled, the percentage of undesired fertility declined as educational level increased for all rural or urban residence categories, places of socialization, and employment groups except women who worked before the first child was born. Women with more education, urban residence, and with histories of employment had the lowest levels of undesired fertility.  相似文献   
155.
Beck M  Hager M  Rogers P  Miller S  Rosenberg D  Snow K 《Newsweek》1993,121(14):28-33
With Bill Clinton's new reforms only a month away, the health-care system is on the operating table--and the doctors are under the knife. Americans have a love-hate relationship with physicians: they like the care that doctors provide but hold them to blame for the nation's health-care mess. NEWSWEEK looks at how the culture of medicine may change, assesses doctors' fears--and examines the brave new world of HMOs.  相似文献   
156.
157.
The author relates three cases of conflict which he has observed in Cairo and recognizes patterns that cut across each of these stories. The stories shed light on how people in Egypt approach and deal with conflict; in addition, they may help readers understand conflict in their home culture as well as be instructive on how to listen to conflict in different cultures. Six general themes in the way Egyptians approach or handle conflict are identified, and each of these themes is analyzed.  相似文献   
158.
Lawyers and judges faced with a contemporary constitutional issue must try to construct a coherent, principled, and persuasive interpretation of the text of particular clauses, the structure of the Constitution as a whole, and our history under the Constitution--an interpretation that both unifies these distinct sources, so far as this is possible, and directs future adjudication. They must seek, that is, constitutional integrity.  相似文献   
159.
160.
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