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   127916篇
  免费   1665篇
  国内免费   287篇
教育   88787篇
科学研究   13682篇
各国文化   1987篇
体育   9926篇
综合类   228篇
文化理论   1087篇
信息传播   14171篇
  2021年   997篇
  2020年   1672篇
  2019年   2577篇
  2018年   3198篇
  2017年   3479篇
  2016年   3491篇
  2015年   2347篇
  2014年   3214篇
  2013年   27316篇
  2012年   2570篇
  2011年   3046篇
  2010年   2533篇
  2009年   2731篇
  2008年   2601篇
  2007年   2393篇
  2006年   2611篇
  2005年   2595篇
  2004年   3155篇
  2003年   2452篇
  2002年   2282篇
  2001年   2240篇
  2000年   1835篇
  1999年   1720篇
  1998年   1486篇
  1997年   1537篇
  1996年   1696篇
  1995年   1468篇
  1994年   1471篇
  1993年   1471篇
  1992年   1580篇
  1991年   1493篇
  1990年   1511篇
  1989年   1438篇
  1988年   1292篇
  1987年   1215篇
  1986年   1243篇
  1985年   1509篇
  1984年   1360篇
  1983年   1337篇
  1982年   1271篇
  1981年   1192篇
  1980年   1171篇
  1979年   1315篇
  1978年   1245篇
  1977年   1139篇
  1976年   1027篇
  1975年   837篇
  1974年   840篇
  1973年   812篇
  1971年   670篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
161.
Students who are deaf or hard of hearing (SDHH) often use test accommodations when they participate in large-scale, standardized assessments. The purpose of this article is to present findings from the Third Annual Survey of Assessment and Accommodations for Students who are Deaf or Hard of Hearing. The "big five" accommodations were reported by at least two-thirds of the 389 participants: extended time, small group/individual administration, test directions interpreted, test items read aloud, and test items interpreted. In a regression analysis, language used in instruction showed the most significant effects on accommodations use. The article considers these findings in light of a more proactive role for the National Survey in providing evidence for the effectiveness of accommodations with SDHH.  相似文献   
162.
This study describes response to intervention (RTI) screening and progress‐monitoring instruments and procedures in 41 local school settings. For screening the schools most often used published reading assessments or commercial products; a three‐times‐per‐year screening schedule was most prevalent. For progress monitoring schools most often relied on published reading assessments; a weekly progress monitoring schedule was most prevalent. The variability between local school practices is discussed with regard to efficiency, equity, and viability of RTI.  相似文献   
163.
164.
The validity and reliability of curriculum‐based measures in reading as indicators of performance and progress for secondary‐school students were examined. Thirty‐five grade 8 students completed reading aloud and maze‐selection measures weekly for 10 weeks. Criterion measures were the state standards test in reading and the Woodcock–Johnson III Test of Achievement. Different time frames for each measure were compared. Most alternate‐form reliability coefficients were above .80. Criterion‐related validity coefficients ranged from .77 to .89. No differences related to time were found. Only maze selection reflected significant growth, with an average increase of 1.29 correct choices per week. Maze growth was related to the reading performance level and to change on the Woodcock–Johnson III from pre‐ to posttest.  相似文献   
165.
S. Ramasesha 《Resonance》2009,14(8):782-798
Efficient lighting and display have become important concerns in the energy-starved modern world. This has led to new paradigms in lighting and display technologies. Organic molecules provide a new class of active materials for such technologies. This article gives the basic science behind the design of such molecular materials used in displays and lighting.  相似文献   
166.
167.
168.
169.
170.
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