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   28925篇
  免费   1327篇
  国内免费   42篇
  2021年   245篇
  2020年   464篇
  2019年   483篇
  2018年   672篇
  2017年   660篇
  2016年   746篇
  2015年   514篇
  2014年   652篇
  2013年   2639篇
  2012年   1114篇
  2011年   1173篇
  2010年   775篇
  2009年   779篇
  2008年   1024篇
  2007年   986篇
  2006年   881篇
  2005年   749篇
  2004年   782篇
  2003年   718篇
  2002年   716篇
  2001年   876篇
  2000年   898篇
  1999年   639篇
  1998年   365篇
  1997年   326篇
  1996年   253篇
  1995年   285篇
  1994年   266篇
  1993年   272篇
  1992年   487篇
  1991年   443篇
  1990年   462篇
  1989年   446篇
  1988年   433篇
  1987年   407篇
  1986年   405篇
  1985年   394篇
  1984年   350篇
  1983年   297篇
  1982年   238篇
  1981年   250篇
  1979年   303篇
  1978年   273篇
  1977年   229篇
  1975年   262篇
  1974年   316篇
  1973年   262篇
  1972年   243篇
  1969年   225篇
  1968年   222篇
排序方式: 共有10000条查询结果,搜索用时 78 毫秒
61.
62.
63.
64.
Cardiovascular reactivity to video game and mental arithmetic stressors was compared among three groups of men: aerobically trained mild hypertensives, untrained mild hypertensives, and a comparison group of untrained normotensives. Relative to the untrained hypertensives, the trained hypertensives reacted to the video game with marginally smaller systolic blood pressure and diastolic blood pressure, but there were no significant differences between these groups in reactivity during the mental arithmetic task. Comparisons between each hypertensive group and the normotensive group showed that blood pressure (BP) reactivity of normotensives during the video game was generally similar to that of trained hypertensives but smaller than that of untrained hypertensives. These results indicate that aerobic training, which has been found to reduce resting BP in mild hypertensives, may also exert a favorable impact in reducing cardiovascular reactivity of hypertensives during some stressful situations.  相似文献   
65.
66.
67.
68.
Although message‐production theories often assume that goals behave dynamically to direct communication behavior, few studies consider the interconnectedness of goals and behavior throughout interactions. Here, the interrelationship of communication goals and tactics was examined through a sequential analysis of 47 conflict interactions between close friends or dating partners. It was posited that for both the initiators and resistors in a conflict, the importance of relational or other‐identity goals would be associated with the use of integrative tactics and the importance of instrumental or self‐identity goals would be related to the use of distributive tactics. We examined these predictions within and across partners. Analyses indicated that for both conflict initiators and resistors, the importance of a combination self/instrumental goal predicted the use of distributive tactics and the importance of an other‐identity goal lead to partner‐oriented tactics. For resistors, the importance of an instrumental goal was associated with the use of distributive tactics and the importance of a combination identity/relational goal was aligned with issue‐oriented tactics as well. Across partners, several significant patterns between one partner’s use of distributive or integrative tactics and the other partner’s goals were observed. Implications of the results for understanding conflict and message production are discussed.  相似文献   
69.
70.
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