全文获取类型
收费全文 | 835篇 |
免费 | 10篇 |
专业分类
教育 | 561篇 |
科学研究 | 63篇 |
各国文化 | 18篇 |
体育 | 82篇 |
文化理论 | 6篇 |
信息传播 | 115篇 |
出版年
2023年 | 4篇 |
2022年 | 9篇 |
2021年 | 9篇 |
2020年 | 20篇 |
2019年 | 31篇 |
2018年 | 34篇 |
2017年 | 36篇 |
2016年 | 32篇 |
2015年 | 22篇 |
2014年 | 37篇 |
2013年 | 206篇 |
2012年 | 26篇 |
2011年 | 24篇 |
2010年 | 18篇 |
2009年 | 18篇 |
2008年 | 29篇 |
2007年 | 26篇 |
2006年 | 14篇 |
2005年 | 22篇 |
2004年 | 10篇 |
2003年 | 9篇 |
2002年 | 20篇 |
2001年 | 16篇 |
2000年 | 14篇 |
1999年 | 10篇 |
1998年 | 5篇 |
1997年 | 6篇 |
1996年 | 8篇 |
1995年 | 8篇 |
1994年 | 6篇 |
1993年 | 6篇 |
1992年 | 6篇 |
1991年 | 6篇 |
1990年 | 10篇 |
1989年 | 4篇 |
1988年 | 8篇 |
1986年 | 5篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1983年 | 5篇 |
1982年 | 7篇 |
1979年 | 4篇 |
1978年 | 3篇 |
1977年 | 4篇 |
1976年 | 4篇 |
1975年 | 3篇 |
1971年 | 3篇 |
1967年 | 2篇 |
1885年 | 2篇 |
1870年 | 2篇 |
排序方式: 共有845条查询结果,搜索用时 23 毫秒
31.
32.
33.
34.
To determine gender differences, positional differences, and patterns of change in the performance of the basketball line-drill test, 93 male (mean age 16.8 years, s = 1.1) and 95 female (mean age 16.5 years, s = 1.0) basketball players undertook 516 line-drill tests over a 5-year period. Log-transformed performance times were analysed using a mixed model that included quadratic within-participant fixed effects for time in the season and time in the programme. Changes and differences were standardized for interpretation of magnitudes. Mean performance times were 28.0 s (s = 1.3) for males and 30.4 s (s = 1.3) for females. The mean pattern of change in performance within a season differed substantially between the sexes and playing positions: male guards and female centres showed moderate to very large improvements mid-season of 1.1% and 3.5% respectively (90% confidence limits +/-2.1% and +/-3.0%), while female guards and male forwards showed large to very large decrements of -1.6% (+/-2.6%) and -2.4% (+/-2.0%). Over 3 years, males improved performance across all three playing positions by 1.4% (+/-1.3%) and females by 2.9% (+/-1.4%). Males improved performance by 0.2% (+/-0.5%) per year, whereas the performance of females deteriorated by 0.6% (+/-0.4%) per year. The differing patterns of performance change presumably reflect variations in training and competition loads, with short-term fluctuations in performance being managed to promote longer-term improvements. 相似文献
35.
36.
37.
Continuing the series of succint and practical accounts of the plans of churches employing Directors of Religious Education, we are glad to print this account with its emphasis on the Episcopal viewpoint and its statement of service with limited income and equipment. 相似文献
38.
39.
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
40.