全文获取类型
收费全文 | 22836篇 |
免费 | 2382篇 |
国内免费 | 4019篇 |
专业分类
教育 | 12772篇 |
科学研究 | 5819篇 |
各国文化 | 99篇 |
体育 | 2996篇 |
综合类 | 1761篇 |
文化理论 | 108篇 |
信息传播 | 5682篇 |
出版年
2022年 | 89篇 |
2021年 | 113篇 |
2020年 | 337篇 |
2019年 | 738篇 |
2018年 | 1022篇 |
2017年 | 1088篇 |
2016年 | 1115篇 |
2015年 | 1149篇 |
2014年 | 1124篇 |
2013年 | 2755篇 |
2012年 | 1435篇 |
2011年 | 1649篇 |
2010年 | 1689篇 |
2009年 | 1350篇 |
2008年 | 1693篇 |
2007年 | 1506篇 |
2006年 | 670篇 |
2005年 | 667篇 |
2004年 | 915篇 |
2003年 | 713篇 |
2002年 | 697篇 |
2001年 | 479篇 |
2000年 | 469篇 |
1999年 | 393篇 |
1998年 | 287篇 |
1997年 | 305篇 |
1996年 | 295篇 |
1995年 | 203篇 |
1994年 | 193篇 |
1993年 | 180篇 |
1992年 | 244篇 |
1991年 | 199篇 |
1990年 | 194篇 |
1989年 | 191篇 |
1988年 | 178篇 |
1987年 | 148篇 |
1986年 | 166篇 |
1985年 | 168篇 |
1984年 | 128篇 |
1983年 | 148篇 |
1982年 | 113篇 |
1981年 | 104篇 |
1980年 | 97篇 |
1979年 | 173篇 |
1978年 | 114篇 |
1977年 | 110篇 |
1976年 | 111篇 |
1975年 | 80篇 |
1974年 | 89篇 |
1971年 | 71篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
993.
994.
From the earliest years in the development of confidence testing, several authors have expressed the concern that confidence test scores were influenced, to a measurable degree, by personality variables. Advocates of confidence testing have claimed that the effects of personality variables can be reduced with practice. This study attempts to evaluate the association of personality variables with confidence test scores in light of practice. It was concluded that although significant correlations between personality variables and confidence testing scores could be obtained, these correlations did not hold up with replication. 相似文献
995.
G S Cruzat 《Bulletin of the Medical Library Association》1968,56(3):285-291
Over a five-year period, much progress has been made in meeting the needs of health care personnel in the Detroit metropolitan area through library cooperation. These cooperative relationships have stimulated implementation of the following projects: (1) publications, (2) research on medical library problems, and (3) library programs at both the city and state levels. 相似文献
996.
997.
The effects of training with overweight and underweight cricket balls on fast-bowling speed and accuracy were investigated in senior club cricket bowlers randomly assigned to either a traditional (n = 9) or modified-implement training (n = 7) group. Both groups performed bowling training three times a week for 10 weeks. The traditional training group bowled only regulation cricket balls (156 g), whereas the modified-implement training group bowled a combination of overweight (161-181 g), underweight (151-131 g) and regulation cricket balls. A radar gun measured the speed of 18 consecutive deliveries for each bowler before, during and after the training period. Video recordings of the deliveries were also analysed to determine bowling accuracy in terms of first-bounce distance from the stumps. Bowling speed, which was initially 108 +/- 5 km h(-1) (mean +/- standard deviation), increased in the modified-implement training group by 4.0 km x h(-1) and in the traditional training group by 1.3 km x h(-1) (difference, 2.7 km x h(-1); 90% confidence limits, 1.2 to 4.2 km x h(-1)). For a minimum worthwhile change of 5 km x h(-1), the chances that the true effect on bowling speed was practically beneficial/trivial/harmful were 1.0/99/< 0.1%. For bowling accuracy, the chances were 1/48/51%. This modified-implement training programme is not a useful training strategy for club cricketers. 相似文献
998.
篮球运动跳投训练浅析 总被引:1,自引:0,他引:1
运用理论分析的方法,阐述篮球运动中队员“跳投”的重要作用。通过三步系统化训练提高队员“跳投”的合理性及准确性,为大家提供参考。 相似文献
999.
Detlefsen EG 《Medical reference services quarterly》2004,23(4):87-94
The article describes an innovation in MLIS education for medical librarianship, with an introduction to the FastTrack, the distance education program at the University of Pittsburgh's library and information science school, together with an overview of a model program linking the biomedical library at Vanderbilt University with the School of Information Sciences in Pittsburgh. Admissions requirements and specific curriculum for the distance education master's degree are detailed in an FAQ format. 相似文献
1000.
ALA、LA、JLA图书馆职业资格制度之比较分析与启示 总被引:1,自引:0,他引:1
在介绍和比较分析ALA、LA、JLA及我国台湾地区图书馆职业资格制度的基础上,针对目前我国图书馆界存在的人才短缺、人才外流情况,结合我国部分省市出台的图书馆法规、条例中关于图书馆人员任用的规定,提出建立我国图书馆职业资 格制度的建议。 相似文献