全文获取类型
收费全文 | 13143篇 |
免费 | 207篇 |
国内免费 | 11篇 |
专业分类
教育 | 9062篇 |
科学研究 | 1671篇 |
各国文化 | 113篇 |
体育 | 990篇 |
综合类 | 17篇 |
文化理论 | 160篇 |
信息传播 | 1348篇 |
出版年
2022年 | 87篇 |
2021年 | 134篇 |
2020年 | 205篇 |
2019年 | 271篇 |
2018年 | 391篇 |
2017年 | 414篇 |
2016年 | 377篇 |
2015年 | 250篇 |
2014年 | 364篇 |
2013年 | 2162篇 |
2012年 | 322篇 |
2011年 | 306篇 |
2010年 | 297篇 |
2009年 | 259篇 |
2008年 | 277篇 |
2007年 | 285篇 |
2006年 | 270篇 |
2005年 | 230篇 |
2004年 | 258篇 |
2003年 | 224篇 |
2002年 | 237篇 |
2001年 | 314篇 |
2000年 | 333篇 |
1999年 | 252篇 |
1998年 | 139篇 |
1997年 | 179篇 |
1996年 | 175篇 |
1995年 | 119篇 |
1994年 | 130篇 |
1993年 | 116篇 |
1992年 | 199篇 |
1991年 | 183篇 |
1990年 | 214篇 |
1989年 | 211篇 |
1988年 | 180篇 |
1987年 | 192篇 |
1986年 | 173篇 |
1985年 | 201篇 |
1984年 | 142篇 |
1983年 | 122篇 |
1982年 | 120篇 |
1981年 | 95篇 |
1980年 | 94篇 |
1979年 | 165篇 |
1978年 | 112篇 |
1977年 | 100篇 |
1975年 | 87篇 |
1974年 | 89篇 |
1973年 | 85篇 |
1971年 | 81篇 |
排序方式: 共有10000条查询结果,搜索用时 156 毫秒
991.
Widely varying recommended reading lists for psychiatry residents were obtained from 140 AMA-approved training programs. Approximately 4,000 articles, 2,800 books, and 200 serials were listed. The number of recommendations for each book was counted, and a rank-order determined. A second rank-order was determined from the lists of those eighty-seven programs which indicated that their material covered the "basic" literature; a third rank-order was determined from the number of residents using the lists. All rank-orders agreed on the "most recommended" book and the first eighteen books; there was a 92 percent correlation through the first 453 books. One-third of the "basic" recommendations were for the first 104 books; one-third for the next 349 books, and one-third for the remaining 1,994 books. The subject matter of the first 104 books indicated that the currently most popular subjects in psychiatry are psychoanalytic theories of personality, schizophrenia, psychotherapy, and child psychiatry. A list of the 104 most recommended books is appended. 相似文献
992.
Research should be made a significant part of undergraduate engineering education in order to orient the student toward the solving of new problems. He should learn of the frontiers of his field of study, and should know of the people who are pushing back these frontiers. An increase is needed in the number of courses designed for guiding a student to define problems, to make assumptions, to search for his own methods of solving them, and to develop a way to report his findings. Almost as a dividend, new ideas and the exercise of originality provide a strong motivation to learning. 相似文献
993.
994.
995.
996.
997.
998.
Alan S Kaufman 《Contemporary educational psychology》1976,1(2):180-196
A four-test short form of the WISC-R was developed on the basis of both rational and statistical criteria, using data from the representative standardization sample. The short-form comprised Arithmetic and Vocabulary from the Verbal Scale along with Picture Arrangement and Block Design from the Performance Scale. Various psychometric properties of the abbreviated battery were defined, and indicators of the short form's accuracy in predicting Full-Scale IQ (the standard error of estimate, effectiveness in classifying a child's intelligence level) were provided. A major topic of discussion was the use and abuse of short forms. 相似文献
999.
1000.
S B Campbell 《Journal of learning disabilities》1979,12(8):511-513