全文获取类型
收费全文 | 33337篇 |
免费 | 1394篇 |
国内免费 | 27篇 |
专业分类
34758篇 |
出版年
2020年 | 353篇 |
2019年 | 440篇 |
2018年 | 624篇 |
2017年 | 611篇 |
2016年 | 695篇 |
2015年 | 451篇 |
2014年 | 557篇 |
2013年 | 2701篇 |
2012年 | 1051篇 |
2011年 | 1058篇 |
2010年 | 623篇 |
2009年 | 699篇 |
2008年 | 888篇 |
2007年 | 906篇 |
2006年 | 817篇 |
2005年 | 734篇 |
2004年 | 704篇 |
2003年 | 652篇 |
2002年 | 673篇 |
2001年 | 1074篇 |
2000年 | 1079篇 |
1999年 | 810篇 |
1998年 | 371篇 |
1997年 | 331篇 |
1995年 | 340篇 |
1992年 | 652篇 |
1991年 | 619篇 |
1990年 | 598篇 |
1989年 | 583篇 |
1988年 | 565篇 |
1987年 | 509篇 |
1986年 | 508篇 |
1985年 | 551篇 |
1984年 | 471篇 |
1983年 | 429篇 |
1982年 | 351篇 |
1979年 | 511篇 |
1978年 | 368篇 |
1977年 | 335篇 |
1976年 | 354篇 |
1975年 | 393篇 |
1974年 | 471篇 |
1973年 | 496篇 |
1972年 | 419篇 |
1971年 | 364篇 |
1970年 | 332篇 |
1969年 | 365篇 |
1968年 | 438篇 |
1967年 | 394篇 |
1966年 | 369篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
Speech-language clinicians working with the confirmed stuttering client are often faced with the clinical management of the covert symptoms of stuttering in addition to the more observable and measurable overt symptoms. The authors report the successful use of awareness techniques to exaggerate the subjective experience of these covert symptoms and encourage the use of these techniques as an adjunct to the counseling and desensitization procedures traditionally employed. A transcribed clinical management session in which several awareness techniques are used to aid the client in an introspective examination of “anticipation of stuttering,” is analyzed in order to reach some specific recommendations for using awareness techniques in the clinical management of the covert symptoms of stuttering. 相似文献
993.
994.
C. GILBERT WRENN 《Journal of counseling and development : JCD》1983,61(6):323-326
Counselors must fight politically and professionally for their continued existence and, in view of major social changes, risk entering new fields of work. 相似文献
995.
C. EDWARD WATKINS 《Journal of counseling and development : JCD》1983,61(7):417-423
Five categories of counselor acting out are explored. Also several intervention measures are presented as means of preventing or reducing counselor acting out. 相似文献
996.
Ronald C. Johnson Craig T. Nagoshi Frank M. Ahern James R. Wilson Gerald E. McClearn Steven G. Vandenberg 《Personality and individual differences》1983,4(6):709-713
Substantial differences exist across ethnic groups and sexes in generational changes in status among groups residing in Hawaii. Despite these generational differences across groups, age differences in personality are remarkably consistent across sexes and racial/ethnic groups, and the few Sex x Age, Ethnicity x Age or Sex x Ethnicity x Age interactions account for little variance in scores. It is concluded that age/generational differences in personality factor scores in these populations result from age and not, to any major degree, from cohort effects. 相似文献
997.
The role of motion in infants' perception of solid shape 总被引:1,自引:0,他引:1
C Owsley 《Perception》1983,12(6):707-717
Previous research has shown that infants as young as the first few months of life perceive several aspects of the three-dimensional environment. Yet we know relatively little about the visual depth information which serves as a basis for their spatial capacities. A study is reported in which a visual habituation procedure was used to examine what types of optical depth information four-month-old infants find useful in visually perceiving solid (three-dimensional) shape. Results imply that in the absence of binocular depth cues four-month-olds rely on kinetic depth information to perceive solid shape. 相似文献
998.
Light source position in the perception of object shape 总被引:2,自引:0,他引:2
The apparent relief of monocularly viewed surfaces reversed when the order of light and shade was reversed relative to the position of a lamp observed the moment earlier. The pattern of shading was reversed either by illuminating from a direction opposite to that of the apparent direction of illumination or by inverting the illuminating image relative to the light source. The combination of both of these manipulations restores the original juxtaposition of light source and shading and reestablished accurate perception of relief. These results demonstrate that the perception of the relief of physical surfaces depends upon the remembered position of an apparent light source. 相似文献
999.
Eugene C. Goldfield 《Developmental Review》1983,3(4):371-404
The ecological thesis of direct realism is used as a framework for examining the development of knowing in human infancy. When information for perceiving is defined ecologically (i.e., relative to the situational context and to the physical dimensions, capabilities, and needs of the perceiver), knowing need not be construed as the act of using representations to give meaning to acts or percepts. Knowing, alternatively, is the act of noticing affordances, situation and perceiverspecific meanings of objects, according to their value to the perceiver for achieving specific goals. Changes with development in infant sensorimotor functioning may, in this view, be explained by a process of increasing economy in noticing potentially available affordances, rather than a process of constructing a representational system for making present something not present. Studies of three infant skills widely attributed to the onset of representation are examined with regard to this ecological thesis. Results indicate that the noticing of affordances is critically involved in each of these skills. 相似文献
1000.
Interactions of 16 adults (eight married couples whose youngest child was less than 2 1/2 years old) with a single actor infant, dressed as either a male or a female, were recorded and analyzed in four categories: direction of gaze, facial expression, physical contact with the infant, and toy used. After the interaction period, a 45-minute interview on child rearing was conducted with each member of the couple. Observed interactions were then compared with interview data. The results support previous studies which show that both male and female parents behave differently toward unfamiliar infants on the basis of perceived sex. However, parents, especially mothers, appeared unaware of their differential treatment of male and female infants. These results suggest subtle sex-typing of infants by adults. 相似文献