全文获取类型
收费全文 | 3884篇 |
免费 | 198篇 |
国内免费 | 4篇 |
专业分类
4086篇 |
出版年
2023年 | 37篇 |
2022年 | 45篇 |
2021年 | 73篇 |
2020年 | 98篇 |
2019年 | 95篇 |
2018年 | 132篇 |
2017年 | 159篇 |
2016年 | 178篇 |
2015年 | 98篇 |
2014年 | 122篇 |
2013年 | 445篇 |
2012年 | 212篇 |
2011年 | 205篇 |
2010年 | 148篇 |
2009年 | 128篇 |
2008年 | 169篇 |
2007年 | 167篇 |
2006年 | 147篇 |
2005年 | 116篇 |
2004年 | 117篇 |
2003年 | 113篇 |
2002年 | 93篇 |
2001年 | 69篇 |
2000年 | 59篇 |
1999年 | 55篇 |
1998年 | 41篇 |
1997年 | 26篇 |
1996年 | 43篇 |
1995年 | 27篇 |
1994年 | 21篇 |
1993年 | 21篇 |
1992年 | 42篇 |
1991年 | 45篇 |
1990年 | 23篇 |
1989年 | 20篇 |
1988年 | 35篇 |
1987年 | 27篇 |
1986年 | 26篇 |
1985年 | 28篇 |
1984年 | 34篇 |
1980年 | 17篇 |
1979年 | 21篇 |
1978年 | 21篇 |
1975年 | 20篇 |
1974年 | 16篇 |
1973年 | 21篇 |
1972年 | 21篇 |
1971年 | 16篇 |
1968年 | 16篇 |
1966年 | 19篇 |
排序方式: 共有4086条查询结果,搜索用时 15 毫秒
101.
102.
103.
104.
105.
106.
Linda De Bottari 《Journal of counseling and development : JCD》1969,47(7):675-678
This study is an investigation of the relationship between third grade final marks, achievement test scores, and subsequent achievement in elementary and secondary school. It was focused on the early identification of students for whom changes in the curriculum might be indicated. 相似文献
107.
D. N. Lee D. S. Young P. E. Reddish S. Lough T. M. H. Clayton 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1983,35(2):333-346
To investigate the timing of actions relative to events in the environment, we observed subjects leaping to punch a falling ball. We analysed their knee and elbow angles as functions of time for three ball-drop heights, finding that the differences in the functions for the different heights could be explained on the basis that the subjects were gearing their actions to a particular optic variable. This variable specifies the time remaining before contact with an object if the closing velocity is constant; for the falling ball it gives an increasingly accurate estimate of the time-to-contact. Our visuo-moto control model incorporates a delay parameter, the value of which was estimated from the data. In addition, correlations indicated that the knee and elbow were generally quite tightly coupled. The relationship of this task to laboratory tracking tasks and to the timing of actions in everyday life is described. 相似文献
108.
109.
Jrg Stolz Detlef Pollack Nan Dirk De Graaf Jean‐Philippe Antonietti 《Journal for the scientific study of religion》2021,60(1):83-102
The sociological literature has produced a remarkably consistent picture of the quantitative patterns of religious disaffiliations in Western countries. This article argues, and demonstrates, that strong changes in a social context may lead individuals to disaffiliate rapidly, leading to very different aggregate effects from those in the “western model.” We use the unique situation of the separation of Germany from 1949 to 1989 and its subsequent reunification as a “natural experiment” to show just how much the relationships routinely found can be disrupted under changed conditions. The state socialist “treatment” affected religious disaffiliations in East Germany profoundly as it (a) made disaffiliations 10 times more probable in the East than in the West in the 1950s and 1960s, (b) shielded East German church members from factors that led to mass disaffiliations in the West in the late 1960s and early 1970s, (c) reversed the education‐disaffiliation link in the East, thus making disaffiliation more likely among the less educated, and (d) led to an especially strong increase in disaffiliations in the East right after the reunification 相似文献
110.
Studia Logica - We establish completeness and the finite model property for logics featuring the pooling modalities that were introduced in Van De Putte and Klein (Pooling modalities and... 相似文献