全文获取类型
收费全文 | 34920篇 |
免费 | 1495篇 |
国内免费 | 25篇 |
专业分类
36440篇 |
出版年
2020年 | 400篇 |
2019年 | 484篇 |
2018年 | 696篇 |
2017年 | 669篇 |
2016年 | 754篇 |
2015年 | 503篇 |
2014年 | 603篇 |
2013年 | 2799篇 |
2012年 | 1152篇 |
2011年 | 1133篇 |
2010年 | 671篇 |
2009年 | 745篇 |
2008年 | 973篇 |
2007年 | 984篇 |
2006年 | 897篇 |
2005年 | 765篇 |
2004年 | 736篇 |
2003年 | 699篇 |
2002年 | 725篇 |
2001年 | 1112篇 |
2000年 | 1137篇 |
1999年 | 846篇 |
1998年 | 390篇 |
1997年 | 352篇 |
1996年 | 347篇 |
1995年 | 347篇 |
1993年 | 338篇 |
1992年 | 674篇 |
1991年 | 647篇 |
1990年 | 611篇 |
1989年 | 589篇 |
1988年 | 578篇 |
1987年 | 525篇 |
1986年 | 521篇 |
1985年 | 576篇 |
1984年 | 468篇 |
1983年 | 436篇 |
1982年 | 365篇 |
1979年 | 520篇 |
1978年 | 370篇 |
1976年 | 356篇 |
1975年 | 413篇 |
1974年 | 475篇 |
1973年 | 494篇 |
1972年 | 420篇 |
1971年 | 366篇 |
1969年 | 361篇 |
1968年 | 442篇 |
1967年 | 390篇 |
1966年 | 373篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Cerebral laterality was examined for third-, fourth-, and fifth-grade deaf and hearing subjects. The experimental task involved the processing of word and picture stimuli presented singly to the right and left visual hemifields. The analyses indicated the deaf children were faster than the hearing children in overall processing efficiency, and that they performed differently in regard to hemispheric lateralization. The deaf children processed the stimuli more efficiently in the right hemisphere, while the hearing children demonstrated a left-hemisphere proficiency. This finding is discussed in terms of the hypothesis that cerebral lateralization is influenced by auditory processing. 相似文献
992.
The purpose of the present study was to determine if aphasic subject groups differentiated by the fluency of their verbal output employed rehearsal as a strategy for maintaining verbally coded information in primary memory. A task based upon the Brown-Peterson paradigm was administered to 10 fluent aphasic patients, 10 nonfluent aphasic patients, 10 right-brain-damaged patients, and 10 nonneurological patients. The findings indicate that the nonfluent aphasic patients did not rehearse the verbal information while the fluent aphasic, right-brain-damaged, and nonneurological patients did rehearse. In addition, both fluent and nonfluent aphasic patients encoded significantly less information into the memory system initially and performed worse on the task overall than right-brain-damaged and nonneurological patients. 相似文献
993.
The present research conceptualizes life structure, or the pattern of life, as the ordering of priorities among competing alternatives. Intentions to emphasize career, marriage, or both were investigated for college students. Variations in these intentions were seen as resulting from differences in two classes of variables: (a) the perceived consequences of emphasizing the alternative; and (b) perceived normative pressures. A subjective probability model of the relationship between beliefs and behavioral intentions was used as a framework for determining the importance of these factors. The considerations identified as most likely to have a direct impact on life structure dealt primarily with interpersonal relations, particularly marriage and family. In general, the data suggested that the subjective probability model may be useful for further understanding of life structure decisions. 相似文献
994.
Psychological studies of masculinity-femininity in children have paralleled those done with adults, which often consider deviations from masculinity for males and femininity for females as abnormal and perhaps pathological. Children who demonstrate cross-sex behaviors, however, may become androgynous adults whose cross-sex behaviors mean flexibility, not pathology. This study had two purposes: (1) to identify potentially androgynous children as those labeled by their peers as tomboys and sissies; (2) to compare personality characteristics of androgynous children with those of peers. Subjects were 312 elementary school children in a midwestern city. Results indicate that the labels tomboy and sissy are not necessarily indicators of androgynous children, but important social behaviors are related to the labels. For males, the possibility of frustrated creativity was raised. 相似文献
995.
996.
997.
998.
Most dimensional analyses of traditional Rorschach scoring categories have either failed to control for differences in total R or have done so by introducing a nonstandard mode of administration. Consequently, the results of such studies may be either distorted or of questionable relevance to more typical situations. The present analyses, which compared both group and individual forms of the Rorschach administered to large samples (over 500 each) of male medical students, controlled for differences in total R by using residualized scores from which the linear effects of R had been partialled. The factor-analytic results are expressed in terms of seven easily interpretable factors (including total R), five of which are similar across forms, and simple formulas for deriving norm-referenced factor scores from the data of individual test administrations are provided. 相似文献
999.
We distinguish three different readings of the intuitionistic notions of validity, soundness, and completeness with respect to the quantification occurring in the notion of validity, and we establish certain relations between the different readings. For each of the meta-logical notions considered we suggest that the most natural reading (which is not the same for all cases) is precisely the one which is required by the recent intuitionistic completeness theorems for IPC.This paper was partly written while the first author, H. C. M. de Swart, was a Visiting Fellow at Princeton University for the academic year 1976–1977. This opportunity was given to him by the Niels Stensen Stichting in Amsterdam, the department of philosophy of the Catholic University in Nijmegen and by Princeton University. He is happy to express his appreciation for that opportunity. 相似文献
1000.