全文获取类型
收费全文 | 869篇 |
免费 | 13篇 |
国内免费 | 7篇 |
专业分类
教育 | 707篇 |
科学研究 | 77篇 |
各国文化 | 3篇 |
体育 | 49篇 |
综合类 | 27篇 |
信息传播 | 26篇 |
出版年
2023年 | 7篇 |
2022年 | 1篇 |
2021年 | 12篇 |
2020年 | 19篇 |
2019年 | 27篇 |
2018年 | 14篇 |
2017年 | 17篇 |
2016年 | 31篇 |
2015年 | 28篇 |
2014年 | 39篇 |
2013年 | 131篇 |
2012年 | 42篇 |
2011年 | 57篇 |
2010年 | 46篇 |
2009年 | 50篇 |
2008年 | 60篇 |
2007年 | 55篇 |
2006年 | 54篇 |
2005年 | 43篇 |
2004年 | 26篇 |
2003年 | 35篇 |
2002年 | 19篇 |
2001年 | 19篇 |
2000年 | 19篇 |
1999年 | 7篇 |
1998年 | 5篇 |
1997年 | 6篇 |
1996年 | 8篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 4篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1979年 | 1篇 |
排序方式: 共有889条查询结果,搜索用时 15 毫秒
1.
2.
文章简单介绍宣城市30万Nm/d液化天然气项目的设计,并对设计中难以把握或容易出错的地方做了重点说明。 相似文献
3.
Nicolas Milazzo Damian Farrow Alexis Ruffault Jean F. Fournier 《Journal of sports sciences》2016,34(16):1547-1556
This study examined the contribution of situational probability information to the perceptual and cognitive processes underlying decision-making behaviour during in situ Karate performance. Experts and novices were required to make decisions about various attacks in different fight scenarios. The order in which the fight situations were presented was modified in order to provide advanced probability information and identify whether fighters were able to use the latter information to make better decisions. Specifically, one of the attacks was repeated every four actions. Results revealed that experts were more accurate and faster than their less skilled counterparts to block and counterattack the opponent. The experts picked up the occurrence of the attack pattern after the fifth repetition whereas novices did not. This enabled experts to improve decision time and decision accuracy. Findings suggest that such superiority could stem from the perceptual and cognitive skills possessed by the experts, thus giving them the opportunity to recognise a situation more easily. This was reinforced by gaze behaviour which demonstrated that experts used a more efficient search strategy involving fewer fixations of longer duration on a lesser number of areas relative to the novices. Moreover, experts generated more refined karate-specific knowledge structures compared with the novices. 相似文献
4.
周明强 《浙江教育学院学报》2002,(2)
语言是文化的载体,文化又是一种语境。人们的交际活动除了与一定的社会环境和自然环境相联系外,还与一定的民族、一定的时代的文化有密切的联系。文化语境不仅制约和影响着语言要素的选用和变化,而且还制约和影响着交际者对语言的理解。 相似文献
5.
“I Heard it through the Grapevine”: Doctoral Student Socialization in Chemistry and History 总被引:2,自引:0,他引:2
Susan K. Gardner 《Higher Education》2007,54(5):723-740
Twenty doctoral students in the disciplines of chemistry and history were interviewed to better understand the socialization
processes that influence their success and how these processes differ by year in the degree program and disciplinary culture.
Five major themes emerged describing these socialization processes and how they facilitate or impede degree success, including
Ambiguity, describing the programmatic guidelines and expectations that surrounded much of the students’ experience; Balance,
pointing to the students’ need to balance graduate school responsibilities along with external relationships and demands;
Independence, describing the students’ desire to find equilibrium as they transitioned to the role of independent scholar;
Development, highlighting the significant cognitive, personal, and professional development that occurs in these students’
graduate experience; and Support, describing the faculty, peer, and financial support needed for the students’ success in
their degree programs. Suggestions for policy, practice, and further research are discussed. 相似文献
6.
Lyn D. English 《Educational Studies in Mathematics》2006,63(3):303-323
This paper examines 6th grade children's local conceptual development and mathematization processes as they worked a comprehensive
mathematical modeling problem (creating a consumer guide for deciding the best snack chip) over several class periods. The
children and their teachers were participating in a 3-year longitudinal teaching experiment in which sequences of mathematical
modeling problems were implemented from the 5th grade (10 years of age) though to the 7th grade. In contrast to traditional
problem solving, mathematical modeling requires children to generate and develop their own mathematical ideas and processes,
and to form systems of relationships that are generalizable and reusable. Reported here is a detailed analysis of the iterative
cycles of development of one group of children as they worked the problem, followed by a summary of the mathematization processes
displayed by all groups. Children's critical reflections on their models are also reported. The results show how children
can independently develop constructs and processes through meaningful problem solving. Children's development included creating
systems for operationally defining constructs; selecting, categorizing, and ranking factors; quantifying quantitative and
qualitative data; and transforming quantities. 相似文献
7.
8.
解自忠 《中国教育技术装备》2003,(11):17-18
科学地阐述了新的信息技术的不断出现并得到运用,《语文新课程标准》的正式出台,引发了语文教学的新变革。 相似文献
9.
杨毓隽 《北京城市学院学报》2007,(6):99-103
合作原则,作为一个重要的会话原则,在言语交际中被交际双方广泛地遵守着。但是,有时出于具体的交际需要和交际目的,也有很多违反合作原则的情况出现。本文运用合作原则对一个重要的语言现象——模糊限制语进行了语用分析。从合作原则的四个准则方面对模糊限制语进行了具体的分析,指出,为了达到交际目的,交际双方不得不使用一些模糊限制语,这看似违反了合作原则,其实是对合作原则的竭力遵守。 相似文献
10.
为了研究m-相依序列下学习机器的推广性能,把基于独立同分布的结果推广到m-相依序列,建立采用ERM算法的学习机器的经验风险到它的期望风险相对一致收敛速率的界.并对m-相依序列现有的结论进行改进,得到了m-相依序列下,采用经验风险最小化算法学习机器的推广性能的界. 相似文献