全文获取类型
| 收费全文 | 22287篇 |
| 免费 | 279篇 |
| 国内免费 | 57篇 |
专业分类
| 教育 | 16079篇 |
| 科学研究 | 2015篇 |
| 各国文化 | 187篇 |
| 体育 | 1496篇 |
| 综合类 | 51篇 |
| 文化理论 | 216篇 |
| 信息传播 | 2579篇 |
出版年
| 2021年 | 198篇 |
| 2020年 | 267篇 |
| 2019年 | 401篇 |
| 2018年 | 1189篇 |
| 2017年 | 1252篇 |
| 2016年 | 996篇 |
| 2015年 | 421篇 |
| 2014年 | 554篇 |
| 2013年 | 3805篇 |
| 2012年 | 603篇 |
| 2011年 | 840篇 |
| 2010年 | 763篇 |
| 2009年 | 593篇 |
| 2008年 | 663篇 |
| 2007年 | 760篇 |
| 2006年 | 465篇 |
| 2005年 | 505篇 |
| 2004年 | 434篇 |
| 2003年 | 374篇 |
| 2002年 | 294篇 |
| 2001年 | 441篇 |
| 2000年 | 362篇 |
| 1999年 | 298篇 |
| 1998年 | 206篇 |
| 1997年 | 190篇 |
| 1996年 | 191篇 |
| 1995年 | 148篇 |
| 1994年 | 167篇 |
| 1993年 | 139篇 |
| 1992年 | 237篇 |
| 1991年 | 225篇 |
| 1990年 | 247篇 |
| 1989年 | 229篇 |
| 1988年 | 190篇 |
| 1987年 | 196篇 |
| 1986年 | 201篇 |
| 1985年 | 197篇 |
| 1984年 | 192篇 |
| 1983年 | 166篇 |
| 1982年 | 141篇 |
| 1981年 | 142篇 |
| 1980年 | 130篇 |
| 1979年 | 201篇 |
| 1978年 | 168篇 |
| 1977年 | 117篇 |
| 1976年 | 121篇 |
| 1975年 | 113篇 |
| 1974年 | 105篇 |
| 1973年 | 109篇 |
| 1971年 | 117篇 |
排序方式： 共有10000条查询结果，搜索用时 15 毫秒
11.
12.
13.
14.
15.
16.
Sports Engineering - A Monark cycle ergometer is a device globally used in physiological studies to measure the work and energy levels of exercising humans. In this paper a rope-braked cycle... 相似文献
17.
G L Zellman 《Child abuse & neglect》1992,16(1):57-74
Drawing distinctions on the basis of at least some case characteristics in making reporting decisions makes considerable sense. Using data from a national survey of mandated reporters that included vignettes in which case and personal characteristics were systematically varied, this paper examines the impact of selected characteristics while controlling for others. The data reveal that respondents noticed and responded to case characteristics. Abuse-relevant judgments and reporting intentions varied, often substantially, as a function of case characteristics. Three case characteristics--previous abuse, severity of abuse, and recantation--were powerful predictors of vignette outcomes. A history of previous abuse led to judgments of greater seriousness, a more salutary impact of a report, and greater likelihood of reporting. More severe abuse was more likely to be labelled as abuse, and was more likely to be reported. When the alleged victim retracted her accusation upon questioning by an authority figure, respondents were significantly less likely to intend a report. Child age, perpetrator intent and family socioeconomic status also influenced abuse-relevant judgments and reporting intentions. Respondents were more likely to intend a report when younger children, lazy or angry perpetrators and children from poorer families were portrayed. 相似文献
18.
19.
How has Item Response Theory helped solve problems in the development and use of computer-adaptive tests? Do we need to balance item content with computer-adaptive tests? Could we use IRT to evaluate unusual responses to computer-delivered tests? 相似文献
20.