全文获取类型
| 收费全文 | 1146篇 |
| 免费 | 16篇 |
专业分类
| 教育 | 802篇 |
| 科学研究 | 78篇 |
| 各国文化 | 67篇 |
| 体育 | 72篇 |
| 综合类 | 2篇 |
| 文化理论 | 17篇 |
| 信息传播 | 124篇 |
出版年
| 2022年 | 8篇 |
| 2021年 | 9篇 |
| 2020年 | 18篇 |
| 2019年 | 34篇 |
| 2018年 | 35篇 |
| 2017年 | 34篇 |
| 2016年 | 20篇 |
| 2015年 | 21篇 |
| 2014年 | 34篇 |
| 2013年 | 268篇 |
| 2012年 | 25篇 |
| 2011年 | 49篇 |
| 2010年 | 17篇 |
| 2009年 | 21篇 |
| 2008年 | 19篇 |
| 2007年 | 38篇 |
| 2006年 | 27篇 |
| 2005年 | 23篇 |
| 2004年 | 21篇 |
| 2003年 | 13篇 |
| 2002年 | 9篇 |
| 2001年 | 9篇 |
| 2000年 | 13篇 |
| 1999年 | 13篇 |
| 1997年 | 12篇 |
| 1996年 | 9篇 |
| 1995年 | 17篇 |
| 1994年 | 18篇 |
| 1993年 | 15篇 |
| 1992年 | 13篇 |
| 1991年 | 18篇 |
| 1990年 | 14篇 |
| 1989年 | 11篇 |
| 1988年 | 9篇 |
| 1987年 | 12篇 |
| 1986年 | 8篇 |
| 1985年 | 14篇 |
| 1984年 | 17篇 |
| 1983年 | 14篇 |
| 1982年 | 12篇 |
| 1981年 | 12篇 |
| 1980年 | 23篇 |
| 1979年 | 12篇 |
| 1978年 | 16篇 |
| 1977年 | 7篇 |
| 1976年 | 12篇 |
| 1975年 | 7篇 |
| 1972年 | 7篇 |
| 1970年 | 7篇 |
| 1967年 | 5篇 |
排序方式： 共有1162条查询结果，搜索用时 15 毫秒
61.
Bhavya Bhavya Chen Si Zhang Zhilin Li Wenting Zhai Chengxiang Angrave Lawrence Huang Yun 《Educational technology research and development : ETR & D》2022,70(5):1755-1779
Educational technology research and development - Captions play a major role in making educational videos accessible to all and are known to benefit a wide range of learners. However, many... 相似文献
62.
Journal of Science Education and Technology - As data become more available and integrated into daily life, there has been growing interest in developing data science curricula for youth in... 相似文献
63.
64.
65.
66.
67.
The development of external, nontraditional degree programs has stimulated discussion as to the usefulness of the diplomas received through such programs. Questionnaires completed by 686 graduates of Illinois' statewide Board of Governors Bachelor of Arts Degree Program measure the extent to which the degree is acceptable to graduates and their employers, the degree to which student goals were met upon graduation, the quality of program services, and the success rate of students applying to graduate schools. The results are overwhelmingly positive, suggesting that non-traditional degrees are gaining general acceptance among a wide variety of groups.For assistance in collecting, tabulating and analyzing data for this article, the authors are grateful to C. Edward Gilpatric, Judith Hofstrand, Elizabeth Stanley, and Donald Tedder. 相似文献
68.
This paper deals with an application of PERT to R & D scheduling for the National Center for Drug Analysis, U. S. Food and Drug Administration. The Center is a pharmaceutical-chemistry laboratory having specialized functional responsibilities for research and development of analytical chemical procedures. The model was constructed based on the empirical data obtained at the Center for a five-year period. The model has been statistically tested and interpreted. It assists the management of the Center in developing a complete work-planning process and in controlling the project tasks, thus achieving the effective utilization of human and physical resources. 相似文献
69.
70.