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   2697篇
  免费   22篇
  国内免费   99篇
教育   1810篇
科学研究   710篇
各国文化   11篇
体育   74篇
综合类   124篇
文化理论   3篇
信息传播   86篇
  2023年   1篇
  2022年   11篇
  2021年   22篇
  2020年   24篇
  2019年   32篇
  2018年   19篇
  2017年   13篇
  2016年   11篇
  2015年   40篇
  2014年   153篇
  2013年   162篇
  2012年   225篇
  2011年   216篇
  2010年   229篇
  2009年   251篇
  2008年   216篇
  2007年   223篇
  2006年   212篇
  2005年   166篇
  2004年   112篇
  2003年   119篇
  2002年   89篇
  2001年   74篇
  2000年   48篇
  1999年   24篇
  1998年   15篇
  1997年   15篇
  1996年   4篇
  1995年   2篇
  1994年   7篇
  1993年   6篇
  1992年   7篇
  1991年   4篇
  1990年   5篇
  1989年   10篇
  1988年   2篇
  1987年   1篇
  1986年   6篇
  1985年   8篇
  1984年   11篇
  1983年   5篇
  1982年   7篇
  1981年   4篇
  1979年   2篇
  1978年   2篇
  1977年   2篇
  1976年   1篇
排序方式: 共有2818条查询结果,搜索用时 15 毫秒
991.
This paper considers the painting Any Wintry Afternoon in England (1930) (AWA) by the prominent artist and social commentator C.R.W. Nevinson (1889–1946). The painting is one of few, and perhaps the best-known, by an English fine artist to take football as its subject matter during the first 40 years of that sport's professional existence. The paper concentrates on gaining an understanding of this painting within the context of Nevinson's biography. Of course, a painting may well be admired by viewers without any knowledge of the painter at all, and no issue is taken in the paper with the possibility of totally independent readings. But from an art-history and cultural-history perspective, knowledge of a painter's biography is significant in allowing for consideration of the artwork as a product of its time. In the case of AWA, knowledge of Nevinson's hostility to sport supports the view of a leading critic, on the occasion its of its exhibition, that the painting was intended as a satire on the mass popularity of football in England in the 1920s. Forearmed with this knowledge, wariness can be taken against subsequent attempts to locate AWA within a genre of ‘football paintings’ that represent an enthusiasm for the game. Nevinson's earlier involvement with Futurism had acquainted him with that movement's tendency to take aspects of popular culture as inspiration for art. But Nevinson took football as a derisory subject matter rather than inspiration and in doing so put AWA at odds with the contemporaneous visual representations of football that had begun to appear in popular mediums such as postcards and film. Yet, contrary to some wishful interpretations though it may be, AWA, owing to its very contrariness, remains an important historical image in the visual representation of football as popular culture.  相似文献   
992.
Professors Richard J. Murnane and John B. Willett set out to capitalize on recent developments in education data and methodology by attempting to answer the following questions: How can new methods and data be applied most effectively in educational and social science research? What kinds of research designs are most appropriate? What kinds of data are needed? What statistical methods are best used to process these data, and how can results be interpreted so that policymakers are best informed? In this review we summarize main contributions of the book, assess the unique value-added of the text, and discuss the usability of it to various potential audiences.  相似文献   
993.
This paper studies the optimal allocation of resources – in terms of school management, teachers, supporting employees and materials – in secondary schools. We use a flexible budget constrained output distance function model to estimate both technical and allocative efficiency scores for 448 Dutch secondary schools between 2002 and 2007. The results indicate that the average technical efficiency amounts to about 78 percent, implying that, with the given resources, schools could improve students’ educational performance by 28 percent. In terms of allocative efficiency, we estimate a 0.65 percent overutilization of teachers while management and supporting personnel are underutilized. The outcomes indicate that, despite the significant variation among schools, the average school is close to the optimal allocation of teachers.  相似文献   
994.
This paper presents a new laboratory-based module for embedded systems teaching, which addresses the current lack of consideration for the link between hardware development, software implementation, course content and student evaluation in a laboratory environment. The course introduces second year undergraduate students to the interface between hardware and software and the programming of embedded devices; in this case, the PIC (originally peripheral interface controller, later rebranded programmable intelligent computer) microcontroller. A hardware development board designed for use in the laboratories of this module is presented. Through hands on laboratory experience, students are encouraged to engage with practical problem-solving exercises and develop programming skills across a broad range of scenarios.  相似文献   
995.
本文分析了高校计算机应用与软件工程方向实验教学的现状,以夯实基础、科学考核、规范设计、激励创新为宗旨,提出了创建软件课程实验教学支持平台的思想和实现方法;完成了同步实验、考核测试、案例欣赏、小组合作、自主创新等5个子系统的设计。依据专业课程之间固有的联系,以工程实践的成功案例为组织纽带,向学生展示软件开发的全过程,强调实践、重视积累、激励创新,逐步实现历届学生学习过程的层次型发展。  相似文献   
996.
文章分析C语言课程教学的现状,探讨C语言课程教学内容的重点、难点和主线,结合C源程序举例介绍如何改进C语言教学,同时提出C语言程序设计课程的创新教学方法,使得抽象难学的计算机语言课程变成学生爱学的、能理解的一门课程,并且提高学生的学习兴趣及实践能力。  相似文献   
997.
根据C语言程序设计课程的特点,提出基于阶梯模式的驱动教学法进行课程教学体系的设计,主要包括知识阶梯、能力阶梯、案例阶梯和任务阶梯,同时在教学方法上采用问题驱动、任务驱动和案例驱动,在教学过程中采用概念获得、信息处理、知识运用和自主学习阶梯展开教学,实现学生基本知识掌握、程序设计能力的阶梯递进。  相似文献   
998.
英语外宣报道有别于单纯的汉译英,并非对汉语新闻的逐字英译,俩者不能简单地等同视之。外宣报道成功与否,首先取决于传播效果,而跨文化传播过程中汉语新闻的英译质量如何直接影响到传播效果的清晰度。通过大量现成报刊实例分析解释性翻译在外宣翻译中的必要性、种类、作用及背景解释度的把握。  相似文献   
999.
C语言是大多数学生学习的第一门计算机语言,因此,如何让一名初学者深入理解和掌握程序设计中的基本思想,领悟程序设计的思路,掌握程序设计的方法是讲授这门课的重中之重。  相似文献   
1000.
本文采用掺杂Cr2C3的方法探究增韧补强反应烧结SiC陶瓷的途径。通过凝胶注模成型及反应烧结工艺制备Cr/Si/C复相陶瓷由SiC、Si和CrSi2组成,CrSi2由Cr2C3与熔融Si反应生成;材料中SiC颗粒分布均匀,CrSi2存在明显偏析;Gr/Si/C复相陶瓷抗弯强度接近反应烧结SiC/Si陶瓷,平面应变断裂韧性KIC达到3.81MPa.m1/2;CrSi2分布不均和弱化界面结合是抗弯强度以及弹性模量降低的原因。  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