全文获取类型
收费全文 | 14520篇 |
免费 | 173篇 |
国内免费 | 12篇 |
专业分类
教育 | 9855篇 |
科学研究 | 1310篇 |
各国文化 | 152篇 |
体育 | 1507篇 |
综合类 | 22篇 |
文化理论 | 104篇 |
信息传播 | 1755篇 |
出版年
2021年 | 109篇 |
2020年 | 209篇 |
2019年 | 299篇 |
2018年 | 342篇 |
2017年 | 414篇 |
2016年 | 364篇 |
2015年 | 238篇 |
2014年 | 319篇 |
2013年 | 2601篇 |
2012年 | 277篇 |
2011年 | 319篇 |
2010年 | 249篇 |
2009年 | 280篇 |
2008年 | 266篇 |
2007年 | 259篇 |
2006年 | 243篇 |
2005年 | 225篇 |
2004年 | 467篇 |
2003年 | 357篇 |
2002年 | 384篇 |
2001年 | 246篇 |
2000年 | 258篇 |
1999年 | 203篇 |
1998年 | 99篇 |
1997年 | 123篇 |
1996年 | 151篇 |
1995年 | 138篇 |
1994年 | 129篇 |
1993年 | 125篇 |
1992年 | 179篇 |
1991年 | 180篇 |
1990年 | 163篇 |
1989年 | 215篇 |
1988年 | 176篇 |
1987年 | 207篇 |
1986年 | 178篇 |
1985年 | 232篇 |
1984年 | 191篇 |
1983年 | 173篇 |
1982年 | 152篇 |
1981年 | 129篇 |
1980年 | 110篇 |
1979年 | 173篇 |
1978年 | 136篇 |
1977年 | 121篇 |
1976年 | 139篇 |
1975年 | 103篇 |
1974年 | 118篇 |
1973年 | 98篇 |
1971年 | 107篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
191.
Kenneth E. Colwell 《TechTrends》2004,48(3):35-39
It goes without saying that the expression “garbage in, garbage out” still applies. Poorly designed instruction cannot be
saved by a flashy, high-tech presentation. Flashy garbage is still garbage. But a high-tech presentation can be a very useful
tool for instructors and trainers to employ if the instructional material is well designed, and learning objectives require
it. If a quality presentation has been developed, it is apparent that students find the use of the graphics tablet to enhance
presentations a useful instructional technique.
I found myself, as the instructor, to be more in touch with the presentation when I used electronic mark-up of presentation
materials. The lectures felt more integrated. I could interact with the presentation more easily and effectively. I’m reminded
of what I teach in my public speaking class about visual aids — use them as an aid to, but not a replacement for, well-prepared
material — but use them. They can help clarify content, maintain interest and increase retention. Enhanced presentations can
do that even more effectively. 相似文献
192.
193.
The education of child‐centered early childhood practitioners involves issues of content, pedagogy, relationships and context. Recent insights on the nature of child‐centered teaching generated by collaborative research with teachers, has highlighted its complexity and suggests that new ways of thinking about teacher education are needed. But developing a more learner‐centered approach to early childhood teacher education will be difficult, given the instrumentalist orientation in many institutions and in societies at large. This paper discusses the broad issues surrounding the development of a more learner‐centered approach to early childhood teacher education and describes several initiatives the authors have been involved in, in Australia and the United States. 相似文献
194.
Reading and Writing - The present study investigates the effectiveness of question paraphrases in supporting students’ understanding of a specific task. Secondary school students (i.e.,... 相似文献
195.
Donald E. Lewis 《高等教育研究与发展》1987,6(1):35-43
Internship programs, whereby students are employed on a full‐time basis while studying part‐time for a degree, are increasingly popular. This paper discusses an analytical framework which is helpful in evaluating, from the student's perspective, alternative internship programs. The methodology is illustrated by a detailed analysis of two internship programs currently available in N.S.W. Other options such as full‐time study, with and without part‐time employment, are also analysed. Comparison of the internships and other options reveal substantial differences in life‐time earnings, rates of renumeration and implicit trade‐offs between income and leisure. Non‐monetary differences may also be substantial. 相似文献
196.
197.
Katherine E. Ryan 《Journal of Educational Measurement》1991,28(4):325-337
This study examined the reliability of the Mantel-Haenszel indexes across different samples of test takers as well as across sample sizes and investigated whether these indexes are robust to item context effects. Mathematics data from the Second International Mathematics Study (SIMS; 1985) for U.S. eighth-grade students were analyzed. The results suggest that the MH D-DIF is robust to item context effects. However, larger sample sizes than those used in this investigation (N = 141-167 for the focal group) may be necessary to obtain stable estimates from the Mantel-Haenszel procedure. 相似文献
198.
199.
200.
Abraham E. Haspel 《Higher Education》1978,7(3):279-294
Employers optimally pursue activities which facilitate the coordinating of employee characteristics and the requirements of the job. One allegedly important employee characteristic is the level of education. Employees with higher levels of education are rewarded with higher wages than employees with lower levels. This may occur if higher levels of education make an employee truly more productive or if because of an employer's beliefs only those individuals with higher levels of education are allowed to enter the higher paying positions (occupational screening).The above propositions are testable, depending crucially upon the theoretical model employed for determining occupational choices. We shall compare the implications of two possible occupation choice models: (1) enter the job which offers the highest lifetime income, (2) enter the job which offers the highest level of overall satisfaction. We estimate these two models using the NBER-TH data sample. By distributing our estimated results and the actual distribution of occupations over the education levels of high school, some college and BA we can see if more or less people are expected to enter specific occupations at each education level. Support for screening exists if more people are expected in high status occupations at low education levels than are actually in those occupations.When comparing the estimated results for each model we see different outcomes emerge. The latter indicates that screening does not exist while the former does. We present arguments as to why we feel that the second model is the more correct and appropriate and, consequently, why we feel that education is not an effective screening device. 相似文献