全文获取类型
收费全文 | 13022篇 |
免费 | 207篇 |
国内免费 | 11篇 |
专业分类
教育 | 8973篇 |
科学研究 | 1660篇 |
各国文化 | 113篇 |
体育 | 984篇 |
综合类 | 17篇 |
文化理论 | 160篇 |
信息传播 | 1333篇 |
出版年
2022年 | 87篇 |
2021年 | 133篇 |
2020年 | 203篇 |
2019年 | 270篇 |
2018年 | 390篇 |
2017年 | 413篇 |
2016年 | 376篇 |
2015年 | 249篇 |
2014年 | 363篇 |
2013年 | 2149篇 |
2012年 | 322篇 |
2011年 | 304篇 |
2010年 | 296篇 |
2009年 | 257篇 |
2008年 | 276篇 |
2007年 | 285篇 |
2006年 | 270篇 |
2005年 | 229篇 |
2004年 | 256篇 |
2003年 | 223篇 |
2002年 | 235篇 |
2001年 | 312篇 |
2000年 | 332篇 |
1999年 | 252篇 |
1998年 | 138篇 |
1997年 | 179篇 |
1996年 | 174篇 |
1995年 | 118篇 |
1994年 | 130篇 |
1993年 | 115篇 |
1992年 | 191篇 |
1991年 | 174篇 |
1990年 | 203篇 |
1989年 | 206篇 |
1988年 | 172篇 |
1987年 | 186篇 |
1986年 | 167篇 |
1985年 | 199篇 |
1984年 | 142篇 |
1983年 | 122篇 |
1982年 | 119篇 |
1981年 | 95篇 |
1980年 | 94篇 |
1979年 | 165篇 |
1978年 | 111篇 |
1977年 | 98篇 |
1975年 | 87篇 |
1974年 | 89篇 |
1973年 | 85篇 |
1971年 | 81篇 |
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
111.
Rev. Robert F. Drinan S.J. 《Equity & Excellence in Education》2013,46(4):8-13
This article was delivered as the plenary address at the Massachusetts Association for Bilingual Education Annual Conference, November, 1986. The style of the speech has been preserved. 相似文献
112.
113.
114.
To inform anti-doping policy and practice, it is important to understand the complexities of doping. The purpose of this study was to collate and systematically examine the reasoned decisions published by UK Anti-Doping for doping sanctions in rugby union in the UK since the introduction of the 2009 World Anti-Doping Code. Case files were content analysed to extract demographic information and details relating to the anti-doping rule violation (ADRV), including individuals’ explanations for how/why the ADRV occurred. Between 2009 and 2015, 49 rugby union players and one coach from across the UK were sanctioned. Over 50% of the cases involved players under the age of 25, competing at sub-elite levels. Reasons in defence of the ADRV focused on functional use and lifestyle factors rather than performance enhancement. An a priori assessment of the “need”, “risk” and “consequence” of using a substance was not commonplace; further strengthening calls for increasing the reach of anti-doping education. The findings also deconstruct the view that “doped” athletes are the same. Consequently, deepening understanding of the social and cultural conditions that encourage doping remains a priority. 相似文献
115.
116.
117.
118.
Thomas S. Greenspon 《Roeper Review》2013,35(3):176-181
Recent articles on the gifted self are characterized by theoretical confusion and lack of definitional clarity. This article, anchored in current self psychology theory, defines the self experience as the person's subjective experience of organization and meaning, the maintenance of which is crucial to normal functioning. Interactions with others are a formative part of the self experience. Traits of giftedness, and the reactions of others to these, contribute to the gifted self experience. Social and emotional problems of giftedness, such as those that arise with asynchronous development and perfectionism, are based on a compromised sense of cohesion and unity of the self experience. 相似文献
119.
Zoe Eirini Papliaka Konstantinos S. Andrikopoulos Evangelia A. Varella 《Journal of Cultural Heritage》2010,11(4):381-391
This study examines the materials of a contemporary pictorial artwork, belonging to the Macedonian Museum of Contemporary Art in Thessaloniki (Greece), and needing conservation. The combined use of micro-FTIR and micro-Raman spectroscopy allowed the identification of almost all painting materials. Moreover, the stability of a series of synthetic pigments towards accelerated ageing is investigated in applications using the contemporary binding medium styrene-acrylic copolymer. The pigments in question are: Hansa yellow PY3 and PY74, quinacridone PV19 and PR122, naphthol AS PR112, phthalocyanine green PG7 and blue PB15, dioxazine PV37, van Dyck brown PBk11, ivory black PBk9, and titanium dioxide PW6. The organic pigments were applied alone or mixed with titanium dioxide, in rutile form or as a mixture of rutile/anatase. The experimental swatches were subjected to ageing tests, and subsequently studied as to colour changes by means of colorimetric measurements, and as to the molecular structure differentiations by infrared spectroscopy in reflectance mode. The ageing tests included exposure to high temperature and humidity (90 °C, 60% RH) and to ultraviolet radiation (350 nm, 30 °C and 50% RH, with a substantial temperature increase at 90 °C for 3 days). The greater colour difference is caused by high temperature and humidity, whereas paint layers containing TiO2, and especially the mixture of the forms rutile/anatase, prove very susceptible to ultraviolet radiation, demonstrating a significant colour difference and extended molecular changes. 相似文献
120.
S J Muncer B S Gorman S Gorman D Bibel 《British journal of educational technology : journal of the Council for Educational Technology》1986,17(1):5-10
Previous attempts to examine the effects of different types of text format on reading have focused on the improvement of reading. The present study investigated the effect of using a text format that might be predicted to disrupt reading. In this study 56 individuals were presented with reading material presented in right-justified format and in'ragged'uneven line format. Subjects performed significantly worse on right-justified material. Subjects who were classified as good readers on the basis of a pretest were more affected than poor readers. It is suggested that this may result from differences in the reading style of good and poor readers. 相似文献