全文获取类型
| 收费全文 | 1217篇 |
| 免费 | 26篇 |
| 国内免费 | 5篇 |
专业分类
| 教育 | 865篇 |
| 科学研究 | 92篇 |
| 各国文化 | 49篇 |
| 体育 | 51篇 |
| 文化理论 | 10篇 |
| 信息传播 | 181篇 |
出版年
| 2023年 | 6篇 |
| 2022年 | 9篇 |
| 2021年 | 7篇 |
| 2020年 | 20篇 |
| 2019年 | 24篇 |
| 2018年 | 31篇 |
| 2017年 | 43篇 |
| 2016年 | 35篇 |
| 2015年 | 27篇 |
| 2014年 | 33篇 |
| 2013年 | 294篇 |
| 2012年 | 28篇 |
| 2011年 | 28篇 |
| 2010年 | 26篇 |
| 2009年 | 41篇 |
| 2008年 | 21篇 |
| 2007年 | 32篇 |
| 2006年 | 25篇 |
| 2005年 | 28篇 |
| 2004年 | 32篇 |
| 2003年 | 25篇 |
| 2002年 | 18篇 |
| 2001年 | 17篇 |
| 2000年 | 26篇 |
| 1999年 | 22篇 |
| 1998年 | 11篇 |
| 1997年 | 11篇 |
| 1996年 | 17篇 |
| 1995年 | 16篇 |
| 1994年 | 9篇 |
| 1993年 | 10篇 |
| 1992年 | 9篇 |
| 1991年 | 10篇 |
| 1990年 | 17篇 |
| 1989年 | 15篇 |
| 1988年 | 10篇 |
| 1987年 | 12篇 |
| 1986年 | 9篇 |
| 1985年 | 9篇 |
| 1982年 | 9篇 |
| 1981年 | 11篇 |
| 1980年 | 9篇 |
| 1978年 | 11篇 |
| 1977年 | 7篇 |
| 1975年 | 10篇 |
| 1974年 | 8篇 |
| 1973年 | 11篇 |
| 1935年 | 9篇 |
| 1934年 | 7篇 |
| 1932年 | 5篇 |
排序方式： 共有1248条查询结果，搜索用时 15 毫秒
991.
I use unusually detailed data on schools, teachers and classrooms to explain student achievement growth in rural Guatemala. Several variables that have received little attention in previous studies – including the number of school days, teacher content knowledge and pedagogical methods – are robust predictors of achievement. A series of decompositions by student ethnicity and type of school shed some additional light on important questions in the Guatemalan context, and beyond. The large indigenous test score gap is not explained by differences in an extensive list of observable features of schools. The large effect for community characteristics suggests peer group effects or more general institutional differences related to services or labor markets. PRONADE community schools are associated with moderate gains vis-à-vis public schools in areas related to utilization of capacity, such as days worked. But these gains are largely offset by lower teacher capacity, which highlights the challenge of improving school quality in poor, rural areas. 相似文献
992.
993.
Bethan Marshall 《Curriculum Journal》2013,24(2):101-113
This article examines how the principles of formative assessment might be applied to the curriculum subject of English. It takes as its starting point the problematic nature of progression in the subject and suggests that it may be better to understand progression as heading towards a horizon rather than a clearly defined goal. The article argues this by exploring the potential constraints of what might be considered goal models of progression and contrasts these with the affordances offered by those approaches that view progression as towards a horizon. In particular it suggests that, in order to understand how to progress, pupils need to acquire the guild subject knowledge of their teachers by being apprenticed into the same community of interpreters. The article situates this discussion within wider concerns about how teachers scaffold and regulate the learning process for their pupils. 相似文献
994.
995.
996.
997.
998.
999.
近期有两则消息引起笔者关注。一则为某地方中级法院仅用7天时间就判决了一起侵犯商业秘密案件,为受害企业减少损失1200余万元,为企业撑起知识产权法律保护伞。一则为美国贸易代表办公室5月2日公佈的《2011年度特别301报告》(下称《特别301报告》),继续将中国列入重点观察 相似文献
1000.
Treatment of surfaces to change the interaction of fluids with them is a critical step in constructing useful microfluidics devices, especially those used in biological applications. Silanization, the generic term applied to the formation of organosilane monolayers on substrates, is both widely reported in the literature and troublesome in actual application for the uninitiated. These monolayers can be subsequently modified to produce a surface of a specific functionality. Here various organosilane deposition protocols and some application notes are provided as a basis for the novice reader to construct their own silanization procedures, and as a practical resource to a broader range of techniques even for the experienced user. 相似文献