全文获取类型
| 收费全文 | 28508篇 |
| 免费 | 396篇 |
| 国内免费 | 19篇 |
专业分类
| 教育 | 20017篇 |
| 科学研究 | 2590篇 |
| 各国文化 | 296篇 |
| 体育 | 2712篇 |
| 综合类 | 7篇 |
| 文化理论 | 238篇 |
| 信息传播 | 3063篇 |
出版年
| 2021年 | 282篇 |
| 2020年 | 446篇 |
| 2019年 | 663篇 |
| 2018年 | 882篇 |
| 2017年 | 833篇 |
| 2016年 | 810篇 |
| 2015年 | 486篇 |
| 2014年 | 654篇 |
| 2013年 | 5180篇 |
| 2012年 | 606篇 |
| 2011年 | 662篇 |
| 2010年 | 519篇 |
| 2009年 | 541篇 |
| 2008年 | 598篇 |
| 2007年 | 560篇 |
| 2006年 | 504篇 |
| 2005年 | 443篇 |
| 2004年 | 464篇 |
| 2003年 | 381篇 |
| 2002年 | 403篇 |
| 2001年 | 554篇 |
| 2000年 | 603篇 |
| 1999年 | 527篇 |
| 1998年 | 305篇 |
| 1997年 | 290篇 |
| 1996年 | 360篇 |
| 1995年 | 295篇 |
| 1994年 | 306篇 |
| 1993年 | 263篇 |
| 1992年 | 437篇 |
| 1991年 | 442篇 |
| 1990年 | 406篇 |
| 1989年 | 458篇 |
| 1988年 | 398篇 |
| 1987年 | 385篇 |
| 1986年 | 387篇 |
| 1985年 | 446篇 |
| 1984年 | 354篇 |
| 1983年 | 359篇 |
| 1982年 | 304篇 |
| 1981年 | 297篇 |
| 1980年 | 316篇 |
| 1979年 | 411篇 |
| 1978年 | 300篇 |
| 1977年 | 253篇 |
| 1976年 | 226篇 |
| 1975年 | 182篇 |
| 1974年 | 201篇 |
| 1973年 | 201篇 |
| 1971年 | 167篇 |
排序方式： 共有10000条查询结果，搜索用时 265 毫秒
61.
John Marshall is best remembered asthe first resident director of the RockefellerFoundation's Study and Conference Center atBellagio. Yet, his influence on knowledge,thought, and practice rivalled that of any ofhis contemporaries at the Rockefeller. Thispaper describes how he `went about hisbusiness' as a Foundation officer, and examineshis contribution to the creation of atransatlantic community of like-mindedtheorists and practitioners of communications. 相似文献
62.
The purpose of this study was to determine test-retest reliability for the 1-mile, 3/4-mile, and 1/2-mile distance run/alk tests for children in Grades K-4. Fifty-one intact physical education classes were randomly assigned to one of the three distance run conditions. A total of 1,229 (621 boys, 608 girls) completed the test-retests in the fall (October), with 1,050 of these students (543 boys, 507 girls) repeating the tests in the spring (May). Results indicated that the 1-mile run/walk distance, as recommended for young children in most national test batteries, has acceptable intraclass reliability (.83 less than R less than .90) for both boys and girls in Grades 3 and 4, has minimal (fall) to acceptable (spring) reliability for Grade 2 students (.70 less than R less than .83), but is not reliable for children in Grades K and 1 (.34 less than R less than .56). The 1/2 mile was the only distance meeting minimal reliability standards for boys and girls in Grades K and 1 (.73 less than R less than .82). Results also indicated that reliability estimates remained fairly stable across gender and age groups from the fall to spring testing periods, with the exception of the noticeably improved values for Grade 2 students on the 1-mile run/walk test. Criterion-referenced reliability (P, percent agreement) was also estimated relative to Physical Best and Fitnessgram run/walk standards. Reliability coefficients for all age group standards were acceptable to high (.70 less than P less than .95), except for Fitnessgram standards for 5-year-old girls on the 1-mile test for both fall and spring and for 6-year-old boys and girls on the 1-mile test administered in the spring. 相似文献
63.
64.
65.
66.
67.
68.
GARRETT J. McAULIFFE 《Counselor Education & Supervision》1992,31(3):163-174
A case presentation method of group supervision, as practiced at a community college, is described. Developmental principles underlying this approach are presented. 相似文献
69.
70.