全文获取类型
收费全文 | 789篇 |
免费 | 27篇 |
专业分类
教育 | 648篇 |
科学研究 | 24篇 |
各国文化 | 6篇 |
体育 | 58篇 |
文化理论 | 3篇 |
信息传播 | 77篇 |
出版年
2023年 | 7篇 |
2022年 | 6篇 |
2021年 | 5篇 |
2020年 | 18篇 |
2019年 | 27篇 |
2018年 | 41篇 |
2017年 | 40篇 |
2016年 | 42篇 |
2015年 | 27篇 |
2014年 | 22篇 |
2013年 | 213篇 |
2012年 | 19篇 |
2011年 | 24篇 |
2010年 | 12篇 |
2009年 | 21篇 |
2008年 | 16篇 |
2007年 | 8篇 |
2006年 | 15篇 |
2005年 | 16篇 |
2004年 | 11篇 |
2003年 | 4篇 |
2002年 | 18篇 |
2001年 | 12篇 |
2000年 | 20篇 |
1999年 | 5篇 |
1998年 | 8篇 |
1997年 | 10篇 |
1996年 | 6篇 |
1994年 | 8篇 |
1993年 | 7篇 |
1992年 | 7篇 |
1991年 | 11篇 |
1990年 | 5篇 |
1989年 | 10篇 |
1988年 | 10篇 |
1986年 | 5篇 |
1984年 | 5篇 |
1983年 | 6篇 |
1982年 | 8篇 |
1981年 | 3篇 |
1980年 | 3篇 |
1979年 | 7篇 |
1978年 | 6篇 |
1977年 | 6篇 |
1976年 | 6篇 |
1972年 | 3篇 |
1970年 | 2篇 |
1968年 | 3篇 |
1966年 | 2篇 |
1962年 | 2篇 |
排序方式: 共有816条查询结果,搜索用时 31 毫秒
61.
成长从来都不是件容易的事,特别是娱乐圈。这一次是"万人迷"——贾斯汀·比伯。自从将标志性的厚刘海换成一头凌乱短发开始,"B宝"便开始像脱缰的野马般"离经背道"起来:飙车、和狗仔队吵架、派对闻事、演唱会迟到、拒绝粉丝拥抱……种种顽劣行径,让媒体不禁揣测他是不是就要步小甜甜布兰妮和林赛罗翰后尘了。 相似文献
62.
Peter J.F. Harris 《Endeavour》2019,43(3):100695
This article draws attention to literary works which have been influenced by microscopy, or in which microscopy has played a significant role. The work of writers including Jonathan Swift, Voltaire, George Eliot, H. G. Wells and D. H. Lawrence is discussed. In many cases these authors had direct experience of operating microscopes and viewing the wonders of the microscopic world. However, with the increasing separation of the two cultures, recent examples of microscopy in literature are rare. 相似文献
63.
Environmental degradation has become one of the major obstacles to sustainable development and human well-being internationally. Scientific efforts are being made to understand the mechanism of environmental degradation and sustainability. Critical Zone (CZ) science and research on the multi-functional landscape are emerging fields in Earth science that can contribute to such scientific efforts. This paper reviews the progress, similarities and current status of these two scientific research fields, and identifies a number of opportunities for their synergistic integration through functional and multi-functional approaches, process-based monitoring, mechanistic analyses and dynamic modeling, global long-term and networked monitoring and systematic modeling supported by scaling and deep coupling. These approaches proposed in this paper have the potential to support sustainable human well-being by strengthening a functional orientation that consolidates multi-functional landscape research and CZ science. This is a key challenge for sustainable development and human well-being in the twenty-first century. 相似文献
64.
ABSTRACTLibraries use surveys and other instruments to gather feedback from their users. However, with competition from many other campus entities requesting input, how can survey fatigue be avoided? To gather this feedback, the Social Sciences Reference Desk utilized a short, fun and easy method. Each week for 10 weeks during the fall semester of 2017, the reference assistants wrote a survey question on a whiteboard and provided sticky notes for patrons to write their answers. The survey provided valuable information about patrons’ needs and expectations. It also fostered changes that were easily implemented to improve the delivery of library services. 相似文献
65.
Evan Schnittman 《Publishing Research Quarterly》2008,24(2):139-142
Search engine discoverability programs have changed the fundamentals of book marketing by enabling content inside the book
to be used as the source of marketing itself via search results inside books. The internet trifecta of search, browse, buy
is the end game but the complexities of making this work is explored along with an in-depth overview of the potential upside
and difficulties of online content purchase models. 相似文献
66.
67.
68.
In this article, we present an argument for consideration by those researching and promoting new learning environments (NLEs). We believe advocates of NLEs should consider the literature and research base indicating effective instruction is not based on a forced dichotomy between theoretical perspectives, but rather a thoughtful, pragmatic blending of practices based on evidence gained from various perspectives and lines of research. While unguided or minimally guided instructional approaches are popular and intuitively appealing, these approaches ignore substantial evidence indicating these approaches are less effective and less efficient than instructional approaches that incorporate guidance of the learning process that is faded as internal guidance is developed (Kirschner et al., Educ Psychol 41:75–86, 2006). We illustrate how integrating evidence from multiple theoretical perspectives leads to the development of more powerful approaches to learning and instruction through a review of the premises, evolution, and research behind Self-Regulated Strategy Development (SRSD) in the area of writing. 相似文献
69.
Grace刚对摇滚乐产生兴趣的时候,酷玩乐团横空出世,所以他们一直在Grace的心目中占据着特殊的位置。不知不觉,明年酷玩即将迎来第一个十年。虽然现在不再像以前那般狂热,但每次他们出专辑还是会很关注——谁能忽视酷玩的影响力呢?所以听说他们将在12月出EP、明年出新专辑的时候,Grace还是兴奋了好一阵子。出碟速度之快,和之前酝酿了三年之久的《生命万岁》差太远了。不过,不管内容如何,作为粉丝的你,一定不会错过吧。 相似文献
70.
Paul L. Harris 《Child development》2021,92(2):466-483
The imagination of young children has notable constraints. The outcomes and possibilities that they imagine rarely deviate from the everyday regularities they have observed and remembered. Their reality-based imagination is evident in a variety of contexts: early pretend play, envisioning the future, judgments about what is possible, the instructive role of thought experiments, tool making, and figurative drawing. Overall, the evidence shows that children’s imagination helps them to anticipate reality and its close alternatives. This perspective invites future research on the scope of children's thinking about counterfactual possibilities, their ability to make discoveries about reality on the basis of thought experiments, and the ways in which cultural input can expand the scope of the possibilities that they entertain. 相似文献