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   77116篇
  免费   3191篇
  国内免费   29篇
  2020年   792篇
  2019年   956篇
  2018年   1352篇
  2017年   1356篇
  2016年   1454篇
  2015年   1008篇
  2014年   1236篇
  2013年   5724篇
  2012年   2282篇
  2011年   2477篇
  2010年   1498篇
  2009年   1536篇
  2008年   2184篇
  2007年   2212篇
  2006年   2040篇
  2005年   1782篇
  2004年   1655篇
  2003年   1578篇
  2002年   1645篇
  2001年   2509篇
  2000年   2486篇
  1999年   1889篇
  1998年   904篇
  1997年   803篇
  1996年   782篇
  1993年   722篇
  1992年   1586篇
  1991年   1462篇
  1990年   1463篇
  1989年   1333篇
  1988年   1282篇
  1987年   1254篇
  1986年   1313篇
  1985年   1382篇
  1984年   1141篇
  1983年   1024篇
  1982年   754篇
  1981年   734篇
  1979年   1179篇
  1978年   883篇
  1975年   998篇
  1974年   1105篇
  1973年   1196篇
  1972年   986篇
  1971年   914篇
  1970年   805篇
  1969年   837篇
  1968年   1082篇
  1967年   963篇
  1966年   865篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
261.
262.
263.
In this study the authors compared women's and men's reactions to various professional travel situations. A multivariate analysis of covariance was used to determine the effects of sex, professional role, and years traveling on the perceptions of these travel situations.  相似文献   
264.
In this article, the author identifies resources available to assist the gay and lesbian population with career planning and job search concerns. Evolving legal issues are also discussed.  相似文献   
265.
In this article the author lists and discusses sources of test information, with special attention on information given to what will be valuable to employment and career counselors.  相似文献   
266.
Family systems theory, as developed by Murray Bowen, has its conceptual basis in natural systems. A basic premise is that emotional process is not unique to homo sapiens and that human behavior might better be understood by observing this process in the broader context of all natural systems. This essay discusses the phenomenon of symbiosis as it is used in the natural sciences and as it relates to the emergence of increasingly complex systems in nature. Finally, the emergence of the parent/offspring symbiosis from its possible origins to its development in the human family is discussed.  相似文献   
267.
The present study demonstrates the safety and effectiveness of an outpatient program designed to respond to adolescent-precipitated crises by mobilizing and restructuring the family's kinship system. Families of 75 adolescents at risk for hospitalization were followed up to 24 months after treatment with Systemic Crisis Intervention. Measures of offspring and family functioning, suicidal behavior, institutional use, and treatment costs are presented. Results clearly demonstrate the safety, effectiveness, and economic viability of Systemic Crisis Intervention.  相似文献   
268.
In Korea, two number systems are in simultaneous use. One is somewhat irregular (like the English language number system), and the other regular (similar to the Chinese number system). This natural experiment allows a direct test of the hypothesis that structural regularity of the number system facilitates the acquisition of counting. Korean children initially suffer from their numerical ‘bilingualism’: they find it difficult to learn two counting systems at the same time. Yet, after this initial difficulty, they soon master the generative rules which are transparent in the regular system. The cognitive advantage provided by the regular number system then combines with other factors, like intensive teaching and parental pressure, to produce school achievement in mathematics superior to US children's.  相似文献   
269.
270.
An Expanded Attributional Style Questionnaire   总被引:5,自引:0,他引:5  
  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