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   57298篇
  免费   2087篇
  国内免费   19篇
  2018年   835篇
  2017年   810篇
  2016年   896篇
  2015年   653篇
  2014年   800篇
  2013年   4968篇
  2012年   1379篇
  2011年   1463篇
  2010年   958篇
  2009年   909篇
  2008年   1410篇
  2007年   1256篇
  2006年   1196篇
  2005年   1022篇
  2004年   1005篇
  2003年   1023篇
  2002年   1019篇
  2001年   1682篇
  2000年   1618篇
  1999年   1265篇
  1998年   600篇
  1996年   700篇
  1995年   678篇
  1994年   630篇
  1992年   1275篇
  1991年   1152篇
  1990年   1142篇
  1989年   1030篇
  1988年   1066篇
  1987年   1005篇
  1986年   1040篇
  1985年   1040篇
  1984年   914篇
  1983年   774篇
  1982年   606篇
  1981年   646篇
  1979年   904篇
  1978年   705篇
  1977年   594篇
  1976年   635篇
  1975年   810篇
  1974年   887篇
  1973年   975篇
  1972年   835篇
  1971年   791篇
  1970年   711篇
  1969年   725篇
  1968年   893篇
  1967年   798篇
  1966年   805篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
151.
An eye-tracking experiment investigated whether incremental interpretation applies to interclausal relationships. According to Millis and Just's (1994) delayed-integration hypothesis, interclausal relationships are not computed until the end of the second clause, because the processor needs to have two full propositions before integration can occur. We investigated the processing of causal and diagnostic sentences (Sweetser, 1990; Tversky & Kahneman, 1982) that contained the connective because . Previous research (Traxler, Sanford, Aked, & Moxey, 1997) has demonstrated that readers have greater difficulty processing diagnostic sentences than causal sentences. Our results indicated that difficulty processing diagnostic sentences occurred well before the end of the second clause. Thus comprehenders appear to compute interclausal relationships incrementally.  相似文献   
152.
153.
154.
155.
156.
157.
The purpose of this study was to determine the effects of Type A behavior and family history of hypertension on cardiovascular reactivity to mental stress in a group of employed black women. Measures of heart rate and of systolic blood pressure (SBP) and diastolic blood pressure (DBP) were taken at rest, during a mental arithmetic task, and during the Type A Structured Interview (SI). Results indicated that the Type A behavior pattern was associated with SBP and DBP hyperresponsivity during the SI but not during mental arithmetic. Additionally, certain speech components of the Type A pattern, as well as features of the potential-for-hostility component, were also related to cardiovascular responses during the SI. Family history of hypertension did not influence the cardiovascular parameters either alone or in combination with Type A behavior. The results suggest that many of the cardiovascular response characteristics of the Type A pattern that have been observed in predominantly white samples also hold true for blacks. Replication of these findings with other subgroups of blacks, such as young females and middle-aged males, will help document the generality of these findings within the black population.  相似文献   
158.
159.
This research reports a first attempt to study adaptation to laterally displacing prisms in human infants of ages six to ten months. Twenty infants were tested over four days under conditions similar to those used in adult adaptation studies. Evidence was found of vigorous adaptation when infants were exposed to base-right prisms under conditions of active exposure. Detailed consideration is given to the conditions and methods of studying adaptation in infants and implications for adult studies.  相似文献   
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