首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   22395篇
  免费   1026篇
  国内免费   374篇
教育   12949篇
科学研究   7119篇
各国文化   9篇
体育   896篇
综合类   926篇
文化理论   23篇
信息传播   1873篇
  2024年   40篇
  2023年   134篇
  2022年   409篇
  2021年   643篇
  2020年   763篇
  2019年   571篇
  2018年   388篇
  2017年   463篇
  2016年   626篇
  2015年   728篇
  2014年   1391篇
  2013年   1758篇
  2012年   2019篇
  2011年   2010篇
  2010年   1339篇
  2009年   1055篇
  2008年   1206篇
  2007年   1525篇
  2006年   1478篇
  2005年   1276篇
  2004年   1058篇
  2003年   944篇
  2002年   762篇
  2001年   535篇
  2000年   262篇
  1999年   112篇
  1998年   84篇
  1997年   59篇
  1996年   55篇
  1995年   29篇
  1994年   25篇
  1993年   13篇
  1992年   9篇
  1991年   12篇
  1990年   5篇
  1989年   1篇
  1988年   4篇
  1957年   4篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
171.
以建构主义为教学原则,结合计算机公共课实践性强、知识更新快的特点,根据学生心理特点和当前高校教学实际,利用新媒体技术、二次刺激和培养学生学习计算机的情感,优化课堂内外教学,实现知识的建构、能力的提高、正确情感的形成,实现新媒体技术环境下计算机公共课教学的多重优化.  相似文献   
172.
古代产生的"天命"思想及周代对"天命"的新理解,把"人"推向了历史舞台之前台。使人可以从"天命可变"的角度去理解社会的变革及自然界的变化。自此以后,这一思想对于人类对自然界的探索和认识利用产生了深远的影响。特别是对于我国古代科技发展的演变起到了重要的作用。在一张一弛之间,我国的科技发展经历了由萌芽、积累、繁盛、到缓滞、落后。从中我们可以吸取不少的经验和教训。  相似文献   
173.
Through this study the authors evaluate outcomes associated with the use of handheld computers by interventionists in improving the efficiency of direct systematic classroom observation. Information from observations is used by interventionists for treatment planning and evaluation. In this study, interventionists were trained to use personal digital assistants with classroom observational software for use with students who displayed low levels of academic engagement. Results indicated that the personal digital assistants and observational software were perceived as user-friendly, increased computer self-efficacy, and facilitated treatment planning and evaluation. Discussion focuses on implications for use of handheld computers and mobile devices by interventionists.  相似文献   
174.
No abstract available for this article.  相似文献   
175.
《正红旗下》是研究现代汉语的重要语料,从《正红旗下》语料中确定的47个程度副词,根据语义所表程度不同,将《正红旗下》中的程度副词分为三类:表强度,表比较度,表弱度.通过对这些程度副词的历时考察,发现现代汉语中的程度副词大多数是对古代汉语的继承,同时也产生了一些新的程度副词.  相似文献   
176.
从水土保持与生态恢复、生态恢复植被基础、生境条件、规划设计等方面论述了露天开采矿山自然生态环境重建工程技术的原则基础,即生境与工程地质条件结合、岩石边坡环境与植生基础融合和植被物种选择与配置的抗性原则;对工程技术方法进行了分类(即排水方法、格子方法、防风和植生土袋方法)并概括了各方法的特点和工程技术要点,重点描述了基于生态思想的水土保持与生物多样性的协调、人工土壤-重建基础和重视露采矿山生态环境调查相结合的植被重建方法.  相似文献   
177.
宋代福建用煮糖法规模化生产液态糖,且初步掌握了制冰糖的结晶技术。到了元代,福建推广加灰凝固法量产固体红沙糖,并发明了黄泥脱色技术将红沙糖加工为白沙糖。福建通过技术变革,在短短几十年内掌握了简易高效的固体白糖制法,对中国制糖技术在亚洲的领先地位作出了贡献。此外,技术的进步还推动制糖产业格局不断演进,时至今日,福建莆田仍是我国冰糖的主要产地之一。  相似文献   
178.
Study abroad programmes for teacher education students are increasingly being evaluated to determine their effectiveness in achieving intended outcomes. There is a danger, however, that such evaluations will ignore valuable but unintended and serendipitous outcomes of such programmes. This paper investigates an example of such an outcome, the development of a critical perspective towards media constructions of ‘otherness’. In 2002 a group of Australian teacher education students undertook an intensive in‐country Indonesian language programme. The course included mornings of formal immersion language classes and afternoons of cultural experiences with local students. Throughout and following the programme the students were interviewed and wrote about their changing perceptions of Indonesia and the implications of the experience for their professional development. Soon after their return Indonesian–Australian relations were challenged by the terrorist attack in the tourist heart of Bali. Two hundred and two people, including many Australian tourists, were killed in the bomb blast. In some cases the students were personally acquainted with Australian victims. As part of their reflection upon their in‐country experience the students were asked to comment upon whether, and in what ways, the Bali bombings might have affected their perceptions of Indonesia. The students were highly critical of the ethnocentric and stereotyped way in which the Australian media depicted Indonesians in their reporting of the bombing. These students were concerned with the effect that such media constructions might have upon Australian attitudes towards Indonesia and were prepared to challenge such media constructions in the classroom.  相似文献   
179.
《学校用计算机》2013,30(2-3):111-125
Summary

The significance of information technology in education is usually assessed or evaluated on terms of some measures of effectiveness. In different school settings the effectiveness is operationalized in different ways, and in the literature various methods of determining the effectiveness have been discussed (e.g., Secretary's Conference on Educational Technology 1999). In this article, models for assessing the significance of information technology in education based on the teachers' subjective perspective are introduced. Theoretical backgrounds of the models are based on methods developed in information management science to assess the impact of information technology (IT) in industry and business. The first model is comprised of categorizing the rationales for using IT in education, the second model assesses the strategic impact of existing IT applications on one hand and of future IT applications on the other on education, and the third model assesses the roles of applications of IT in teaching. Also, the empirical findings of a small scale test of the two latter models in the Teacher Training School in Rauma (TTSR), a primary school in Finland with about 260 pupils and 19 teachers, are introduced.  相似文献   
180.
在ID3算法基础上提出了基于卡方测试的前剪枝算法,并在Jbuilder2006系统下构建了一个基于决策树挖掘技术的可视化决策系统。该研究基于B/S架构的系统,通过浏览器自动将服务器上的Applet下载到客户端来访问系统,实现了医疗系统的手术诊断数据表的数据挖掘,所得到的实验结果与专家诊断结果基本吻合,取得了较好的实际应用效果。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号