全文获取类型
| 收费全文 | 2358篇 |
| 免费 | 42篇 |
| 国内免费 | 2篇 |
专业分类
| 教育 | 1552篇 |
| 科学研究 | 286篇 |
| 各国文化 | 18篇 |
| 体育 | 199篇 |
| 综合类 | 8篇 |
| 文化理论 | 13篇 |
| 信息传播 | 326篇 |
出版年
| 2022年 | 19篇 |
| 2021年 | 20篇 |
| 2020年 | 29篇 |
| 2019年 | 50篇 |
| 2018年 | 53篇 |
| 2017年 | 80篇 |
| 2016年 | 75篇 |
| 2015年 | 63篇 |
| 2014年 | 68篇 |
| 2013年 | 442篇 |
| 2012年 | 61篇 |
| 2011年 | 64篇 |
| 2010年 | 57篇 |
| 2009年 | 40篇 |
| 2008年 | 52篇 |
| 2007年 | 50篇 |
| 2006年 | 45篇 |
| 2005年 | 33篇 |
| 2004年 | 42篇 |
| 2003年 | 37篇 |
| 2002年 | 30篇 |
| 2001年 | 28篇 |
| 2000年 | 43篇 |
| 1999年 | 52篇 |
| 1998年 | 22篇 |
| 1997年 | 19篇 |
| 1996年 | 22篇 |
| 1995年 | 17篇 |
| 1993年 | 16篇 |
| 1992年 | 23篇 |
| 1991年 | 41篇 |
| 1990年 | 48篇 |
| 1989年 | 40篇 |
| 1988年 | 34篇 |
| 1987年 | 18篇 |
| 1986年 | 30篇 |
| 1985年 | 38篇 |
| 1984年 | 33篇 |
| 1983年 | 23篇 |
| 1982年 | 24篇 |
| 1981年 | 21篇 |
| 1980年 | 17篇 |
| 1979年 | 25篇 |
| 1978年 | 29篇 |
| 1977年 | 21篇 |
| 1976年 | 17篇 |
| 1975年 | 16篇 |
| 1974年 | 16篇 |
| 1971年 | 16篇 |
| 1968年 | 21篇 |
排序方式： 共有2402条查询结果，搜索用时 15 毫秒
991.
992.
R I Nicolson P J Scott 《British journal of educational technology : journal of the Council for Educational Technology》1986,17(1):26-35
Following an analysis of the stages in software production this paper argues that team production remains the only satisfactory method of providing high quality software but that the key to a higher quantity of reasonable quality computer-assisted learning production lies in the development of support technology adequate to permit individual teachers to develop software within their existing curriculum framework. Three promising approaches—software toolboxes, CAL program shells and software CAL analysts—are described. 相似文献
993.
994.
995.
996.
Rachel Theilheimer Josh R. Allen Rena I. R. Allen 《Early Childhood Education Journal》1991,19(1):38-39
Rachel Theilheimer teaches early childhood education at Borough of Manhattan Community College in New York City. Josh R. Allen is a fifth-grader at Dows Lane Elementary School in Irvington, NY, where Rena I. R. Allen is in first grade. 相似文献
997.
In this paper the numerical methods course held for students of the Depart-ment of Electrical Engineering from the Polytechnic Institute of Bucharest is described. This introductory course combines elements of numerical analysis, programming techniques and the methods for computer analysis of electrical circuits and electromagnetic fields. The structure of the numerical methods laboratory classes is presented. The paper emphasizes the difficulties encountered in interaction with the students. 相似文献
998.
R D Telford I G McDonald L B Ellis M H Chennells E R Sandstrom P J Fuller 《Journal of sports sciences》1988,6(1):49-57
The purpose of this study was to compare echocardiographically measured left ventricular (LV) dimensions of 85 trained 11-12-year-old athletes with 106 untrained children matched for skeletal age and fat-free mass. Training status for each group applied to the 3 years prior to the measurements. It was found that 12 min and 100 m runs demonstrated the superior athletic ability of the trained children, but there were no significant differences in LV internal diameters at diastole and systole, in LV posterior wall thickness, or in LV end-diastolic volume and LV mass. These data indicate that little difference occurs in LV size between moderately trained and untrained 11-12-year olds or between boys and girls matched for fat-free mass and skeletal age. It is also evident that consistent but moderate training during late pre-adolescence has little effect on LV development. 相似文献
999.
1000.