全文获取类型
收费全文 | 5467篇 |
免费 | 103篇 |
国内免费 | 119篇 |
专业分类
教育 | 3113篇 |
科学研究 | 1197篇 |
各国文化 | 25篇 |
体育 | 315篇 |
综合类 | 258篇 |
文化理论 | 23篇 |
信息传播 | 758篇 |
出版年
2024年 | 2篇 |
2023年 | 3篇 |
2022年 | 56篇 |
2021年 | 194篇 |
2020年 | 106篇 |
2019年 | 56篇 |
2018年 | 59篇 |
2017年 | 67篇 |
2016年 | 74篇 |
2015年 | 210篇 |
2014年 | 271篇 |
2013年 | 365篇 |
2012年 | 390篇 |
2011年 | 486篇 |
2010年 | 418篇 |
2009年 | 403篇 |
2008年 | 346篇 |
2007年 | 394篇 |
2006年 | 385篇 |
2005年 | 293篇 |
2004年 | 202篇 |
2003年 | 174篇 |
2002年 | 163篇 |
2001年 | 137篇 |
2000年 | 81篇 |
1999年 | 65篇 |
1998年 | 55篇 |
1997年 | 48篇 |
1996年 | 36篇 |
1995年 | 37篇 |
1994年 | 28篇 |
1993年 | 14篇 |
1992年 | 14篇 |
1991年 | 4篇 |
1990年 | 9篇 |
1989年 | 11篇 |
1988年 | 3篇 |
1987年 | 1篇 |
1986年 | 3篇 |
1985年 | 2篇 |
1984年 | 5篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1973年 | 3篇 |
1957年 | 1篇 |
1951年 | 9篇 |
排序方式: 共有5689条查询结果,搜索用时 15 毫秒
941.
Assessment of student learning outcomes is often discussed in relation to curriculum, standards and even administration practices. However, assessment of learning outcomes is rarely discussed in light of students’ socio-emotional contexts, which might help or hinder learning outcomes. For example, do students’ perceptions of the teacher as trustworthy influence their empathic views on classmates, learning engagement, academic achievement and wellbeing? The present paper reports the results of a theoretically-driven, short-term longitudinal study designed to explore the effects of socio-emotional variables, specifically students’ trust in teachers and empathy towards self and peers on engagement for learning, academic achievement, and wellbeing. Grounded in attachment theory and the LEAFF model, Panel Structural Equation Modeling (P-SEM) results revealed three significant pathways, which provide evidence that student trust in teachers may serve to launch a domino effect of outcomes, predicting students’ empathic views of classmates, learning engagement, academic achievement, and wellbeing. 相似文献
942.
作为语文学习的一个重要组成部分,课外阅读是一种综合性的活动,不但可以提高学生语文素养、开拓学生视野、发展学生智力,还可以为学生作文素材的积累提供保证。针对当前中学生存在的阅读不良习惯,帮助他们树立正确的人生观,为他们的终身学习奠定坚实的基础。 相似文献
943.
Chen Chen Yang-yang Fan Xin Wang Fei Song Tao Jiang Ping Qian Shun-ming Tang Xing-jia Shen 《Journal of Zhejiang University. Science. B》2016,17(2):127-135
Based on bioinformatic analysis, we selected two novel microRNAs (miRNAs), bmo-miR-0001 and bmomiR-0015, from high-throughput sequencing of the Bombyx mori larval posterior silk gland (PSG). Firstly, we examined the expression of bmo-miR-0001 and bmo-miR-0015 in 12 different tissues of the 5th instar Day-3 larvae of the silkworm. The results showed that the expression levels of both bmo-miR-0001 and bmo-miR-0015 were obviously higher in the PSG than in other tissues, implying there is a spatio-temporal condition for bmo-miR-0001 and bmo-miR-0015 to regulate the expression of BmFib-L. To test this hypothesis, we constructed pri-bmo-miR-0001 expressing the plasmid pcDNA3.0 [ie1-egfp-pri-bmo-miR-0001-SV40] and pri-bmo-miR-0015 expressing the plasmid pcDNA3.0 [ie1-egfp-pribmo-miR-0015-SV40]. Finally, the BmN cells were harvested and luciferase activity was detected. The results showed that luciferase activity was reduced significantly (P<0.05) in BmN cells co-transfected by pcDNA3.0 [ie1-egfp-pri-bmomiR-0001-SV40] or pcDNA3.0 [ie1-egfp-pri-bmo-miR-0015-SV40] with pGL3.0 [A3-luc-Fib-L-3′UTR-SV40], suggesting that both bmo-miR-0001 and bmo-miR-0015 can down-regulate the expression of BmFib-L in vitro. 相似文献
944.
新时期班主任工作初探 总被引:1,自引:0,他引:1
唐先义 《四川教育学院学报》2005,21(Z1):179-180
新时期,尤其是提倡素质教育以来,教育理念,教学方式和育人方法发生了深刻的变化,班主任只有转变观念和方法,不断探索才能适应时代,否则将被淘汰. 相似文献
945.
946.
947.
948.
文章根据现代工程教育理念,分析了当前机械类专业教学中存在的主要问题及形成的原因,提出了以创新能力培养为导向的机械类专业实践课程改革与研究的思路、总体目标和改革的主要内容,以组织学生参加全国大学生机械创新设计大赛为例总结了已取得的经验。 相似文献
949.
Jianyi Li Lanying Nie Zeyu Li Lijun Lin Lei Tang Jun Ouyang 《Anatomical sciences education》2012,5(6):330-339
Anatomical corrosion casts of human specimens are useful teaching aids. However, their use is limited due to ethical dilemmas associated with their production, their lack of perfect reproducibility, and their consumption of original specimens in the process of casting. In this study, new approaches with modern distribution of complex anatomical spatial information were explored to overcome these limitations through the digitalization of anatomical casts of human specimens through three‐dimensional (3D) reconstruction, rapid prototype production, and Web‐based 3D atlas construction. The corrosion cast of a lung, along with its associated arteries, veins, trachea, and bronchial tree was CT‐scanned, and the data was then processed by Mimics software. Data from the lung casts were then reconstructed into 3D models using a hybrid method, utilizing both “image threshold” and “region growing.” The fine structures of the bronchial tree, arterial, and venous network of the lung were clearly displayed and demonstrated their distinct relationships. The multiple divisions of bronchi and bronchopulmonary segments were identified. The 3D models were then uploaded into a rapid prototype 3D printer to physically duplicate the cast. The physically duplicated model of the lung was rescanned by CT and reconstructed to detect its production accuracy. Gross observation and accuracy detection were used to evaluate the duplication and few differences were found. Finally, Virtual Reality Modeling Language (VRML) was used to edit the 3D casting models to construct a Web‐based 3D atlas accessible through Internet Explorer with 3D display and annotation functions. Anat Sci Educ. © 2012 American Association of Anatomists. 相似文献
950.