全文获取类型
收费全文 | 26333篇 |
免费 | 341篇 |
国内免费 | 45篇 |
专业分类
教育 | 18257篇 |
科学研究 | 3111篇 |
各国文化 | 198篇 |
体育 | 1985篇 |
综合类 | 12篇 |
文化理论 | 250篇 |
信息传播 | 2906篇 |
出版年
2021年 | 225篇 |
2020年 | 360篇 |
2019年 | 521篇 |
2018年 | 1239篇 |
2017年 | 1294篇 |
2016年 | 1053篇 |
2015年 | 479篇 |
2014年 | 599篇 |
2013年 | 3983篇 |
2012年 | 594篇 |
2011年 | 818篇 |
2010年 | 735篇 |
2009年 | 562篇 |
2008年 | 658篇 |
2007年 | 723篇 |
2006年 | 416篇 |
2005年 | 434篇 |
2004年 | 502篇 |
2003年 | 411篇 |
2002年 | 323篇 |
2001年 | 624篇 |
2000年 | 525篇 |
1999年 | 426篇 |
1998年 | 237篇 |
1997年 | 265篇 |
1996年 | 249篇 |
1995年 | 211篇 |
1994年 | 239篇 |
1993年 | 186篇 |
1992年 | 338篇 |
1991年 | 325篇 |
1990年 | 321篇 |
1989年 | 347篇 |
1988年 | 292篇 |
1987年 | 269篇 |
1986年 | 296篇 |
1985年 | 348篇 |
1984年 | 269篇 |
1983年 | 273篇 |
1982年 | 243篇 |
1981年 | 210篇 |
1980年 | 196篇 |
1979年 | 273篇 |
1978年 | 239篇 |
1977年 | 196篇 |
1976年 | 186篇 |
1975年 | 169篇 |
1974年 | 175篇 |
1973年 | 176篇 |
1971年 | 144篇 |
排序方式: 共有10000条查询结果,搜索用时 263 毫秒
981.
N A Badian 《Journal of learning disabilities》1986,19(5):262-269
982.
James H. McMillan Gary T. Henry Diane Crosby Kent C. Dickey 《Educational Measurement》1995,14(1):15-21
Why is there an increased need for quantitative indicators of student socioeconomic status at the school level? What alternative approaches have been used to measure SES? Can principals accurately estimate the SES distribution of their student populations? How do their estimates correlate with other indexes o f family SES? 相似文献
983.
984.
985.
986.
A marketing audit enables a library to look at audiences, services, and products with a structured approach. The audit can be used to assess operations and to provide a framework for ongoing decision making, evaluation, and long-range planning. An approach to the audit process is presented and its application is demonstrated in a case study featuring the American Hospital Association Resource Center. 相似文献
987.
988.
Differences in motor performance according to chronological age and gender of 341 young Nigerian children (ages 3 to 5) were examined. Motor test items designed by Morris et al. (1981) were administered to the subjects. Analysis of variance was used to determine significant differences in the motor performance of the groups. In the whole sample, more age differences than sex differences in performance were noted. Except for the balancing and running performances of the girls, a fairly linear trend of improvement with age was observed in the motor performances of the groups. At each age level the boys consistently performed better than the girls in four of the six motor tests (catching, standing long jump, tennis ball throw and speed run). Generally, the 4- and 5-year-old children performed homogeneously, with a great disparity in performance noted for the 3-year-old children. The results of this study confirm that age and sex differences in motor performance occur at early childhood. Prospective studies should seek to control the extraneous factors which influence motor development and account for the observed differences in motor performance of pre-school children. 相似文献
989.
The formal creation of an Integrated Academic Information Management System (IAIMS) at the University of Utah began in the fall of 1983. The keystone of the IAIMS effort is the HELP hospital information system. IAIMS at the University of Utah is a broad-based program extending across the Health Sciences Center and beyond to health professionals throughout the inter-mountain area. This paper describes the background that led to IAIMS, the IAIMS planning process, and the library's participation in this effort. 相似文献
990.