全文获取类型
收费全文 | 22697篇 |
免费 | 286篇 |
国内免费 | 19篇 |
专业分类
教育 | 15898篇 |
科学研究 | 2017篇 |
各国文化 | 293篇 |
体育 | 1991篇 |
综合类 | 27篇 |
文化理论 | 206篇 |
信息传播 | 2570篇 |
出版年
2021年 | 162篇 |
2020年 | 284篇 |
2019年 | 445篇 |
2018年 | 542篇 |
2017年 | 641篇 |
2016年 | 580篇 |
2015年 | 397篇 |
2014年 | 528篇 |
2013年 | 4520篇 |
2012年 | 437篇 |
2011年 | 500篇 |
2010年 | 425篇 |
2009年 | 429篇 |
2008年 | 455篇 |
2007年 | 453篇 |
2006年 | 418篇 |
2005年 | 410篇 |
2004年 | 628篇 |
2003年 | 500篇 |
2002年 | 521篇 |
2001年 | 362篇 |
2000年 | 377篇 |
1999年 | 331篇 |
1998年 | 208篇 |
1997年 | 229篇 |
1996年 | 261篇 |
1995年 | 279篇 |
1994年 | 240篇 |
1993年 | 223篇 |
1992年 | 285篇 |
1991年 | 279篇 |
1990年 | 260篇 |
1989年 | 313篇 |
1988年 | 268篇 |
1987年 | 300篇 |
1986年 | 265篇 |
1985年 | 324篇 |
1984年 | 291篇 |
1983年 | 261篇 |
1982年 | 250篇 |
1981年 | 204篇 |
1980年 | 165篇 |
1979年 | 239篇 |
1978年 | 207篇 |
1977年 | 199篇 |
1976年 | 196篇 |
1975年 | 155篇 |
1974年 | 172篇 |
1973年 | 152篇 |
1971年 | 144篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
43.
44.
45.
V. J. Hinton D. C. De Vivo R. Fee E. Goldstein Y. Stern 《Learning disabilities research & practice》2004,19(3):146-154
Duchenne Muscular Dystrophy (DMD) is a neurogenetic developmental disorder that presents with progressive muscular weakness. It is caused by a mutation in a gene that results in the absence of specific products that normally localize to muscle cells and the central nervous system (CNS). The majority of affected individuals have IQs within the normal range, generally with lower verbal than performance IQ scores. Prior work has demonstrated selective deficits on tests of verbal span and immediate memory. For the current study, 26 boys with DMD (and normal intellectual function) and their unaffected siblings were evaluated. Paired comparisons demonstrated that the children with DMD had significantly poorer academic achievement scores than their siblings, even though their vocabulary levels and home and educational environments were comparable. Children with DMD also had more behavioral concerns, physical disabilities, and poorer verbal memory spans. Linear regression indicated that behavioral concerns, executive function, and physical disability did not contribute substantially to academic performance, whereas performance on verbal span did. DMD presents with a selective developmental aberration in verbal span that has wide‐ranging consequences on learning skills. 相似文献
46.
采用文献资料等研究方法,对我国中学业余田径训练的特点进行了初步分析,根据控制论、信息论和系统论的原理和方法,对中学业余田径运动员的选材、训练目标的确定、训练阶段的划分、训练计划的制定、训练计划的实施、训练结果的检查和评定等进行控制,旨在为中学体育教师和教练员控制业余田径训练过程提供参考. 相似文献
47.
大学体育课程教学模式设计与动作探讨 总被引:3,自引:0,他引:3
本丈参照2002年教育部新颁布的《全国普通高等学校体育课程教学指导纲要》,针对目前高校体育发展的现状,围绕“生活体育、体育生活”这一思路,就体育如何真正走入大学生生活及高校体育与社会体育接轨等问题提出新的操作思路,设计了“一年级选项课 二年级课外教学俱乐部 高年级选修课 全方位体育俱乐部”这一模式。旨在为全国大多数尚未启动或即将启动的高校体育课程教学改革提供借鉴和参考。 相似文献
48.
This paper explores some of the problems arising when Continuous Assessment (CA) is grafted onto established pedagogic practices. It focuses on three issues: teachers' restricted understandings of assessment, teachers' emphasis on criteria that demonstrate concern with social control, and some of the problems connected with peer assessment. Two vignettes derived from fieldwork associated with a project to improve the quality of primary education are used to raise the issues. We argue that the development of desired practices is hampered above all by tacit values in tension with those underpinning the new curriculum. These values, together with the complexity of curriculum design, create serious problems of manageability and interpretation, which can only be addressed through detailed interactive in-service training, aimed at reconceptualising teachers' notions of assessment. 相似文献
49.
50.
John R. Garrett 《Publishing Research Quarterly》1991,7(4):13-20
This article focuses on several conceptual and structural issues that are central to copyright compliance in the electronic
age. It presumes the development of a national electronic network for storing, organizing, accessing, managing, and charging
for information. The article first discusses the implications of constructing a comprehensive electronic “highway,” or Digital
Library System (DLS), which would link information to the widespread community of users. It then presents the ramifications
of a highly decentralized set of subsystems serving rights holders and users, linked by protocols established by the DLS.
A discussion of the implications of digital interchangeability for copyright follows. The article ends with an analysis of
alternatives to existing intellectual property rights conveyance systems, and concludes that current ownership structures,
and systems for conveying rights and royalties, will remain the foundation for copyright in the electronic world.
This article appeared in a slightly different form in theProceedings of the Twelfth National Online Meeting—1991, and is published here with the permission of Learned Information, Inc., Medford, N.J. 相似文献