全文获取类型
收费全文 | 11530篇 |
免费 | 238篇 |
国内免费 | 239篇 |
专业分类
教育 | 7290篇 |
科学研究 | 1803篇 |
各国文化 | 94篇 |
体育 | 870篇 |
综合类 | 525篇 |
文化理论 | 53篇 |
信息传播 | 1372篇 |
出版年
2023年 | 23篇 |
2022年 | 124篇 |
2021年 | 269篇 |
2020年 | 261篇 |
2019年 | 250篇 |
2018年 | 224篇 |
2017年 | 244篇 |
2016年 | 235篇 |
2015年 | 358篇 |
2014年 | 556篇 |
2013年 | 1208篇 |
2012年 | 699篇 |
2011年 | 843篇 |
2010年 | 779篇 |
2009年 | 714篇 |
2008年 | 708篇 |
2007年 | 700篇 |
2006年 | 658篇 |
2005年 | 556篇 |
2004年 | 388篇 |
2003年 | 401篇 |
2002年 | 424篇 |
2001年 | 333篇 |
2000年 | 253篇 |
1999年 | 143篇 |
1998年 | 92篇 |
1997年 | 74篇 |
1996年 | 45篇 |
1995年 | 50篇 |
1994年 | 45篇 |
1993年 | 29篇 |
1992年 | 32篇 |
1991年 | 29篇 |
1990年 | 13篇 |
1989年 | 23篇 |
1988年 | 12篇 |
1987年 | 20篇 |
1986年 | 11篇 |
1985年 | 20篇 |
1984年 | 17篇 |
1983年 | 14篇 |
1982年 | 16篇 |
1981年 | 10篇 |
1980年 | 10篇 |
1979年 | 13篇 |
1978年 | 11篇 |
1975年 | 7篇 |
1973年 | 6篇 |
1971年 | 6篇 |
1957年 | 6篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
221.
Theories of adolescent connectedness suggest that adolescents strive to become connected by engaging with and valuing the
people, activities, and worlds in their social ecology. The purpose of this study was to examine the psychometric properties
of a measure designed to assess these worlds of connectedness among 320 junior high school students in Taiwan. The subscales
and composite scales evidenced satisfactory reliability and concurrent validity. A hypothesized three-factor, higher order
structural model of connectedness was cross-validated. Girls were generally more connected than boys. Both connectedness to
school and to friends explained more variance in connectedness to self than did family connectedness. There was mixed support
for separation-individuation processes. The measure appears promising in terms of future research on adolescent social development
in the Asia Pacific. 相似文献
222.
“What is that sound?”, “What did the kangaroo say?”, and “What might you hear during a walk?” provide evidence that educators of young children realize that listening represents a necessary ingredient in successful school experiences. Children listen for many hours of the school day, but listening has been a neglected area of instruction. The traditional low priority of listening instruction may have been based upon the myth that children naturally learn to listen or on the misconception that listening skills cannot be taught. Using literature to teach listening can improve learners' listening abilities, provided early childhood educators use developmentally appropriate children's literature. 相似文献
223.
Chia-Jung Lee ChanMin Kim 《Educational technology research and development : ETR & D》2017,65(6):1627-1654
This paper presents the third version of a technological pedagogical content knowledge (TPACK) based instructional design model that incorporates the distinctive, transformative, and integrative views of TPACK into a comprehensive actionable framework. Strategies of relating TPACK domains to real-life learning experiences, role-playing, and teachers as designers were developed based on the three views and integrated into the third version of the model. The model was then applied in a teacher education undergraduate course on technology integration. A case study approach was used. Data were collected from the participants’ discussion worksheets, lesson designs, and the researchers’ field observation notes. Data analysis results suggest that the strategies integrated into the model helped the participants deepen their understanding of student-centered technology applications and practice TPACK. Findings, implications, and future research possibilities are discussed. 相似文献
224.
吴瑾 《安徽广播电视大学学报》2017,(2)
《中华人民共和国刑法修正案(九)》拓展了危险驾驶罪的犯罪主体、行为类型,完善了危险驾驶罪共同犯罪的规定.但仍存在危险驾驶罪犯罪客观方面不完整,刑罚配置不合理,入罪标准不明确等不足,应当修改立法,出台司法解释,扩展犯罪行为类型,完善刑罚体系,细化入罪标准. 相似文献
225.
二十一世纪需要高素质的具有创新精神和创新能力的人才,教育要义不容辞地担负起培养创新精神、发展创新能力的责任。课堂是实施教育的主要场所,是培养创新能力的主渠道。在制图教学中,教师要树立起以素质教育为目标的教育新观念,不断加强自身修养,对本课程内容精通原基础上,构建科学的课程体系,改善教学手段,改革课程教学方法,充分调动学生的学习积极性,开启学生的潜能,完善和提高学生的素质,培养出适应社会发展需要的人才。 相似文献
226.
The Effects of a Student Sampling Plan on Estimates of the Standard Errors for Student Passing Rates
Examined in this study were three procedures for estimating the standard errors of school passing rates using a generalizability theory model. Also examined was how these procedures behaved for student samples that differed in size. The procedures differed in terms of their assumptions about the populations from which students were sampled, and it was found that student sample size generally had a notable effect on the size of the standard error estimates they produced. Also the three procedures produced markedly different standard error estimates when student sample size was small. 相似文献
227.
构建现代教育服务体系的理论与实践 总被引:1,自引:0,他引:1
大连教育学院为了很好地服务于本市新时期的初、中等教育,坚持科学发展观,积极构建现代教育服务体系:以"原野行动"服务于新农村建设的教师培训;以"大篷车计划"构建服务于教师专业发展的网络平台;以"空中课堂"服务于农村小学的英语教学;以"村小校长培训"服务于推进区域教育均衡发展的校长培训末梢工程;以"名师名校长培训"服务于全面实施素质教育的校长、教师培训;以"二二三四"工作服务于大连市的初、中等教育与教学。 相似文献
228.
河北省安国市,古称祁州,为全国四大药都之首。安国药业渊源于北宋年间皇封邳彤为“药王”,药王庙兴建,形成庙会,逐渐发展成为规模庞大的药材集散市场。本文通过追溯安国药市发展的历史脉络,以田野调查和文献资料为基础进行宗教社会学分析,试图发现邳彤崇拜与安国药市的形成与发展之间的关系,探讨商业神崇拜的社会功能。 相似文献
229.
为了提高低信噪比条件下再生伪码测距系统中的复合伪码时钟恢复性能,采用了一种新型的码片跟踪环.此码片跟踪环是一种改进型的数据转换跟踪环,两者之间的区别在于,码片跟踪环的Q路输出直接乘上了时钟分量,而数据转换跟踪环乘上了I路的转换检测器输出.在准方波伪码测距信号的情况下,详细分析了码片跟踪环的跟踪(均方定时抖动)性能.分析对比了不同码片信噪比条件下的码片跟踪环和数据转换跟踪环跟踪性能.分析表明,码片跟踪环和数据转换跟踪环在大信噪比条件下性能一致;而在小信噪比条件下,码片跟踪环性能明显好于数据转换跟踪环. 相似文献
230.