全文获取类型
| 收费全文 | 22123篇 |
| 免费 | 114篇 |
| 国内免费 | 9篇 |
专业分类
| 教育 | 15987篇 |
| 科学研究 | 2609篇 |
| 各国文化 | 130篇 |
| 体育 | 1119篇 |
| 综合类 | 6篇 |
| 文化理论 | 479篇 |
| 信息传播 | 1916篇 |
出版年
| 2020年 | 127篇 |
| 2019年 | 192篇 |
| 2018年 | 2347篇 |
| 2017年 | 2278篇 |
| 2016年 | 1764篇 |
| 2015年 | 249篇 |
| 2014年 | 321篇 |
| 2013年 | 2211篇 |
| 2012年 | 408篇 |
| 2011年 | 858篇 |
| 2010年 | 975篇 |
| 2009年 | 591篇 |
| 2008年 | 837篇 |
| 2007年 | 1321篇 |
| 2006年 | 243篇 |
| 2005年 | 543篇 |
| 2004年 | 576篇 |
| 2003年 | 480篇 |
| 2002年 | 248篇 |
| 2001年 | 134篇 |
| 2000年 | 174篇 |
| 1999年 | 130篇 |
| 1998年 | 89篇 |
| 1997年 | 100篇 |
| 1996年 | 94篇 |
| 1994年 | 103篇 |
| 1993年 | 113篇 |
| 1992年 | 144篇 |
| 1991年 | 158篇 |
| 1990年 | 150篇 |
| 1989年 | 155篇 |
| 1988年 | 130篇 |
| 1987年 | 139篇 |
| 1986年 | 147篇 |
| 1985年 | 162篇 |
| 1984年 | 156篇 |
| 1983年 | 155篇 |
| 1982年 | 120篇 |
| 1981年 | 134篇 |
| 1980年 | 109篇 |
| 1979年 | 152篇 |
| 1978年 | 155篇 |
| 1977年 | 108篇 |
| 1976年 | 110篇 |
| 1975年 | 101篇 |
| 1974年 | 85篇 |
| 1973年 | 102篇 |
| 1972年 | 88篇 |
| 1971年 | 80篇 |
| 1970年 | 83篇 |
排序方式： 共有10000条查询结果，搜索用时 15 毫秒
21.
22.
Ohne Zusammenfassung 相似文献
23.
24.
25.
Kristjana Kristinsdóttir 《Archival Science》2003,3(2):199-204
The article sets off with a brief summary of the history of appraisal and disposal of records as processed at the National Archives of Iceland (NAI) since its establishment in 1882 to present times. Rules on appraisal and disposal of records introduced in 1900, 1911, and 1916 were ignored and all records were kept. Status quo remained until 1985 when a new National Archives Act was passed. The appraisal and disposal process adopted then is described and explained. It included the publication of instructions on records management as well as forms relating to records management. The influence of acts of law on the appraisal and disposal process is explained. Finally the experience with the arrangement of organised appraisal in Iceland is described. 相似文献
26.
27.
28.
29.
The purpose of this study was to describe the development of elementary students' skill in making predictions and of their understanding of what predicting means. The study involved observing and assessing the performance of 167 children on the Physical Manipulation Test (PMT), a test involving the manipulation of science materials and equipment. Children were interviewed about what they understand predicting to mean, how they use it at school and at home, and why they think it is important. For each of the seven topics tested, even the youngest children were able to offer predictions. Accuracy varied with the topic, increasing between Grades 1 and 4 and leveling off after that. The increase in skill involved children's growing ability to attend to patterns discerned through their own observations. Four levels in the development of predicting skill, as it relates to particular topics, are described. Children's understanding of predicting showed steady improvement through Grade 6. Children's awareness of their use of predicting at school and at home, and their ability to explain the importance of predicting, also increased through Grades 1 to 6, with a spurt at Grade 4. Children understood predicting to be an internal process in which one uses knowledge to anticipate a future event; they regarded predicting as an important way of being intellectually involved with the world. 相似文献
30.
W. A. HART 《Journal of Philosophy of Education》1993,27(1):17-27
The project of studying children in order to understand them, which lies at the heart of contemporary thinking about children and their education, is misconceived. It rests, jrst of all, upon a false belief that we can only come to know something properly by deliberately and systematically pursuing knowledge of it. Secondly, it offers a paradigm of knowing children which justifies parents and teachers in not giving themselves to children. By re-interpreting the problems that adults experience with children as technical, as arising from lack of information about them, it ignores the personal and moral dimension of adults' relations with children and thus further alienates them from one another. 相似文献