全文获取类型
| 收费全文 | 12515篇 |
| 免费 | 142篇 |
| 国内免费 | 11篇 |
专业分类
| 教育 | 8183篇 |
| 科学研究 | 2164篇 |
| 各国文化 | 96篇 |
| 体育 | 877篇 |
| 综合类 | 5篇 |
| 文化理论 | 85篇 |
| 信息传播 | 1258篇 |
出版年
| 2021年 | 142篇 |
| 2020年 | 193篇 |
| 2019年 | 310篇 |
| 2018年 | 402篇 |
| 2017年 | 380篇 |
| 2016年 | 301篇 |
| 2015年 | 215篇 |
| 2014年 | 278篇 |
| 2013年 | 2240篇 |
| 2012年 | 282篇 |
| 2011年 | 244篇 |
| 2010年 | 212篇 |
| 2009年 | 202篇 |
| 2008年 | 203篇 |
| 2007年 | 205篇 |
| 2006年 | 167篇 |
| 2005年 | 169篇 |
| 2004年 | 151篇 |
| 2003年 | 155篇 |
| 2002年 | 139篇 |
| 2001年 | 174篇 |
| 2000年 | 183篇 |
| 1999年 | 162篇 |
| 1998年 | 88篇 |
| 1997年 | 97篇 |
| 1996年 | 117篇 |
| 1995年 | 85篇 |
| 1994年 | 95篇 |
| 1993年 | 100篇 |
| 1992年 | 136篇 |
| 1991年 | 143篇 |
| 1990年 | 148篇 |
| 1989年 | 163篇 |
| 1988年 | 122篇 |
| 1987年 | 116篇 |
| 1986年 | 161篇 |
| 1985年 | 153篇 |
| 1984年 | 127篇 |
| 1983年 | 132篇 |
| 1982年 | 115篇 |
| 1981年 | 94篇 |
| 1980年 | 105篇 |
| 1979年 | 140篇 |
| 1978年 | 122篇 |
| 1977年 | 105篇 |
| 1976年 | 102篇 |
| 1974年 | 110篇 |
| 1973年 | 92篇 |
| 1972年 | 84篇 |
| 1971年 | 108篇 |
排序方式： 共有10000条查询结果，搜索用时 15 毫秒
991.
992.
993.
994.
Hans H. Wellisch 《Learned Publishing》1997,10(1):15-19
Differentiates items on a continuum of verbal texts as: books (single-author, small-team, multiple-author, encyclopedias); periodicals (journals, bulletins, bibliographic volume indexes, cumulations); databases. The requirements of their indexing, with varying problems of policy, language, depth, authors' names, and titles, in both printed and electronic form, are discussed. 相似文献
995.
T. H. McLaughlin 《Journal of Philosophy of Education》1985,19(1):119-127
996.
R J Bootsma M H Houbiers H T Whiting P C van Wieringen 《Research quarterly for exercise and sport》1991,62(3):276-284
Two groups of 10 novice subjects each were trained to perform attacking forehand drives in table tennis and land the balls as fast and as accurately as possible onto a target on the opposite side of the net under two different training conditions. Under the static training condition, the balls were to be struck from a constant position, and under the dynamic training condition, balls approached the subjects in a normal way. Both groups were tested under dynamic conditions prior to and after four days of training, during which they received 1,600 practice trials. Both groups of subjects were shown to increase the number of balls that landed on the target, and learning was also evident from an increased consistency of the direction of travel of the bat at the moment of ball/bat contact. However, no increase in consistency was found for the location of the bat at the moment of ball/bat contact and for the movement times. Thus, learning can occur in the absence of externally generated time-to-contact information, but this is not due to the establishment of a consistent movement form. Learning appears to progress from control at the moment of ball/bat contact backward, toward the moment of initiation. 相似文献
997.
998.
999.
1000.