全文获取类型
收费全文 | 45917篇 |
免费 | 1549篇 |
国内免费 | 19篇 |
专业分类
47485篇 |
出版年
2020年 | 425篇 |
2019年 | 434篇 |
2018年 | 601篇 |
2017年 | 685篇 |
2016年 | 717篇 |
2015年 | 515篇 |
2014年 | 610篇 |
2013年 | 3349篇 |
2012年 | 1170篇 |
2011年 | 1241篇 |
2010年 | 779篇 |
2009年 | 777篇 |
2008年 | 1119篇 |
2007年 | 1049篇 |
2006年 | 952篇 |
2005年 | 897篇 |
2004年 | 845篇 |
2003年 | 819篇 |
2002年 | 892篇 |
2001年 | 1340篇 |
2000年 | 1327篇 |
1999年 | 970篇 |
1998年 | 476篇 |
1997年 | 428篇 |
1992年 | 871篇 |
1991年 | 809篇 |
1990年 | 850篇 |
1989年 | 833篇 |
1988年 | 773篇 |
1987年 | 756篇 |
1986年 | 797篇 |
1985年 | 863篇 |
1984年 | 701篇 |
1983年 | 651篇 |
1982年 | 482篇 |
1981年 | 510篇 |
1979年 | 761篇 |
1978年 | 566篇 |
1977年 | 506篇 |
1976年 | 476篇 |
1975年 | 715篇 |
1974年 | 792篇 |
1973年 | 789篇 |
1972年 | 706篇 |
1971年 | 655篇 |
1970年 | 607篇 |
1969年 | 688篇 |
1968年 | 798篇 |
1967年 | 764篇 |
1966年 | 729篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.
85.
86.
87.
88.
This study examined the effect of high and low communication apprehension in conjunction with social and personal settings upon verbal behavior. Step wise multiple discriminant analysis of the data indicated a linear combination of language indices (number of syllables, Noun-Verb/Adjective-Adverb ratio, and phrase repetitions) which discriminated between the high apprehensive-personal setting group and the remaining three groups. Results are discussed relative to theoretical projections and the potential for sensitivity toward communication behavior being operative within the communication apprehension framework. 相似文献
89.
Recidivism data derived from various sources over a follow-up period of 1–11 yr, provided the basis for appraising the effectiveness of a comprehensive cognitive-behavioral treatment program for familial and nonfamilial child molesters. Unofficial records held by police and Children's Aid Societies proved to be the best data for estimating recidivism. These data revealed increases in recidivism with longer follow-up periods, but there were consistent advantages for the treated over the untreated patients. Men who had sexually abused the daughters of other people demonstrated the clearest treatment benefits. The younger offenders and those who had engaged in genital-genital contact with their victims were more likely to reoffend even if they were treated. Contrary to the expectations of behavior therapists, indices of deviant sexual preferences did not predict outcome. 相似文献
90.
Performances of noncollege student young adults, middle-aged adults, and elderly adults were contrasted on word temporal memory and paired-associate learning tasks. A comparison group of college-student subjects was also evaluated on each task. Significant effects for age variation were found for each task. The age sensitivity for temporal memory conflicts with one of the criteria commonly established for determining the automaticity of a memory task. In addition, moderately high positive correlations were found for each age group between word temporal memory scores and paired-associate learning scores, implying the involvement of effortful processes over the adult lifespan in word temporal memory. 相似文献