全文获取类型
收费全文 | 35511篇 |
免费 | 549篇 |
国内免费 | 40篇 |
专业分类
教育 | 25082篇 |
科学研究 | 3157篇 |
各国文化 | 347篇 |
体育 | 3032篇 |
综合类 | 55篇 |
文化理论 | 290篇 |
信息传播 | 4137篇 |
出版年
2021年 | 307篇 |
2020年 | 533篇 |
2019年 | 749篇 |
2018年 | 996篇 |
2017年 | 1140篇 |
2016年 | 1060篇 |
2015年 | 625篇 |
2014年 | 850篇 |
2013年 | 6522篇 |
2012年 | 813篇 |
2011年 | 922篇 |
2010年 | 694篇 |
2009年 | 698篇 |
2008年 | 747篇 |
2007年 | 721篇 |
2006年 | 664篇 |
2005年 | 799篇 |
2004年 | 924篇 |
2003年 | 727篇 |
2002年 | 745篇 |
2001年 | 626篇 |
2000年 | 614篇 |
1999年 | 571篇 |
1998年 | 295篇 |
1997年 | 332篇 |
1996年 | 385篇 |
1995年 | 334篇 |
1994年 | 324篇 |
1993年 | 302篇 |
1992年 | 449篇 |
1991年 | 445篇 |
1990年 | 469篇 |
1989年 | 489篇 |
1988年 | 451篇 |
1987年 | 424篇 |
1986年 | 407篇 |
1985年 | 513篇 |
1984年 | 419篇 |
1983年 | 405篇 |
1982年 | 326篇 |
1981年 | 318篇 |
1980年 | 273篇 |
1979年 | 392篇 |
1978年 | 329篇 |
1977年 | 300篇 |
1976年 | 276篇 |
1975年 | 219篇 |
1974年 | 227篇 |
1973年 | 229篇 |
1971年 | 199篇 |
排序方式: 共有10000条查询结果,搜索用时 328 毫秒
61.
The Journal Citation Reports as a deselection tool 总被引:1,自引:0,他引:1
T E Smith 《Bulletin of the Medical Library Association》1985,73(4):387-389
62.
63.
随着教育改革的不断深化,高校学生在生活、学习择业等诸多方面的竞争也越来越激烈,从而导致了具有身心疾病的大学生群体不断扩大,其整体健康水平不客乐观.本文就这一问题的现状及形成原因进行分析并提出相应的措施以引起社会各界和广大教育工作者的重视. 相似文献
64.
There is an increasing interest in linking character education programs with social and academic outcomes. The Child Development
Project (CDP) is a character education program that promotes academic and social growth in teachers and students. This theory-driven
evaluation employed a quasi-experimental design with matched control schools. School personnel participated in an intensive
professional development process to learn the CDP model. Performance measures included state-mandated achievement measures,
teacher self-assessment reports, and student attitudes and outcomes. Results yielded support for the CDP model as a strategy
to improve social and, if properly implemented, cognitive outcomes in students; the model also improved teacher self-assessment
and provided information that may facilitate professional growth about school collegiality. Implications for policy and practice
will be discussed. 相似文献
65.
S. E. Phillips 《Educational Measurement》1996,15(2):5-13
What legal issues may arise in setting content or performance standards? What precedents are relevant? What practices are defensible? 相似文献
66.
67.
S Grant T Hasler C Davies T C Aitchison J Wilson A Whittaker 《Journal of sports sciences》2001,19(7):499-505
There is limited information on the anthropometry, strength, endurance and flexibility of female rock climbers. The aim of this study was to compare these characteristics in three groups of females: Group 1 comprised 10 elite climbers aged 31.3 +/- 5.0 years (mean +/- s) who had led to a standard of 'hard very severe'; Group 2 consisted of 10 recreational climbers aged 24.1 +/- 4.0 years who had led to a standard of 'severe'; and Group 3 comprised 10 physically active individuals aged 28.5 +/- 5.0 years who had not previously rock-climbed. The tests included finger strength (grip strength, finger strength measured on climbing-specific apparatus), flexibility, bent arm hang and pull-ups. Regression procedures (analysis of covariance) were used to examine the influence of body mass, leg length, height and age. For finger strength, the elite climbers recorded significantly higher values (P < 0.05) than the recreational climbers and non-climbers (four fingers, right hand: elite 321 +/- 18 N, recreational 251 +/- 14 N, non-climbers 256 +/- 15 N; four fingers, left hand: elite 307 +/- 14 N, recreational 248 +/- 12 N, non-climbers 243 +/- 11 N). For grip strength of the right hand, the elite climbers recorded significantly higher values than the recreational climbers only (elite 338 +/- 12 N, recreational 289 +/- 10 N, non-climbers 307 +/- 11 N). The results suggest that elite climbers have greater finger strength than recreational climbers and non-climbers. 相似文献
68.
69.
70.