全文获取类型
收费全文 | 5635篇 |
免费 | 57篇 |
国内免费 | 136篇 |
专业分类
教育 | 3215篇 |
科学研究 | 1221篇 |
各国文化 | 35篇 |
体育 | 759篇 |
综合类 | 94篇 |
文化理论 | 20篇 |
信息传播 | 484篇 |
出版年
2024年 | 22篇 |
2023年 | 17篇 |
2022年 | 36篇 |
2020年 | 25篇 |
2018年 | 30篇 |
2017年 | 41篇 |
2016年 | 40篇 |
2015年 | 83篇 |
2014年 | 365篇 |
2013年 | 123篇 |
2012年 | 220篇 |
2011年 | 295篇 |
2010年 | 159篇 |
2009年 | 150篇 |
2008年 | 270篇 |
2007年 | 486篇 |
2006年 | 305篇 |
2005年 | 322篇 |
2004年 | 277篇 |
2003年 | 302篇 |
2002年 | 286篇 |
2001年 | 155篇 |
2000年 | 150篇 |
1999年 | 90篇 |
1998年 | 38篇 |
1997年 | 48篇 |
1996年 | 52篇 |
1995年 | 68篇 |
1994年 | 43篇 |
1993年 | 54篇 |
1992年 | 67篇 |
1991年 | 62篇 |
1990年 | 80篇 |
1989年 | 65篇 |
1988年 | 71篇 |
1987年 | 77篇 |
1986年 | 80篇 |
1985年 | 77篇 |
1984年 | 66篇 |
1983年 | 70篇 |
1982年 | 53篇 |
1981年 | 49篇 |
1980年 | 23篇 |
1960年 | 26篇 |
1959年 | 44篇 |
1958年 | 43篇 |
1957年 | 33篇 |
1956年 | 60篇 |
1955年 | 64篇 |
1954年 | 23篇 |
排序方式: 共有5828条查询结果,搜索用时 78 毫秒
91.
92.
This study describes the development of emotional and behavioral regulation in a regional cohort of children born extremely preterm (<28 weeks gestational age, n = 39), very preterm (<34 weeks gestational age, n = 56), and full term (n = 103). At 2 and 4 years, children born at younger gestational ages demonstrated poorer self-regulation across multiple contexts spanning observed interactions, formal cognitive testing, and parental report of child behavior at home. Among children born preterm, the 2 strongest predictors of impairments in self-regulation were the presence of moderate-to-severe cerebral white matter abnormalities on neonatal magnetic resonance and a less sensitive parenting style when children were aged 2 years. Findings support the importance of early neurological development and parenting for developing regulation in children born very preterm. 相似文献
93.
Peter N.Spotcs 《海外英语》2002,(1)
Archaeologists announce discovery of tools and spear points in South Africa that may be 70, 000 years old. 相似文献
94.
近似文字的图画你可能会想:“创造文字这件事情是怎样发生的?这是我们永远也不能知道的了。”人们在祖祖辈辈的相传当中,不仅是关于文字的创造者没有留下任何记忆,而且前辈们对于古代的人是怎样想到要创造文字这件事情也都不知道了。然而,有一个人,向我们十分生动、鲜明地讲述了古代创造文字的情形,就好象他 相似文献
95.
学习领域和教学组织与安排 总被引:1,自引:0,他引:1
彼德F.E.斯鲁阿纳 《中国职业技术教育》2002,(11):12-14
目前,教育界人士对职业学校的专业课程各持己见。有人认为职业技术培训过于理论化岸生无法在课堂上学到足够的应用性知识。所以,提出一个以 相似文献
96.
KATSAGGELOS Aggelos K. 《浙江大学学报(A卷英文版)》2006,7(5):801-810
INTRODUCTION Video streaming is becoming one of the major driving forces of next generation wireless networks. For the currently deployed cellular networks, the practical data rates are not enough to support full rate, high quality video applications. As a result, many research efforts have been devoted to adapting video content to reconcile the conflict between the high demand of video quality and the limited wireless communication resources among users. A large body of literature utiliz… 相似文献
97.
“鲍勃!鲍勃!”我身旁的女人大声命令着,“告诉她你去年为什么不愿跟那个女人结婚!”桌子对面的鲍勃顺从地粗着嗓子回答:“哦,她呀!那真是糟透了!她对我说,要是想跟她结婚的话,我就再也不能去跳舞了!我就告诉她,‘噢,我想我做不到。’” 相似文献
98.
北太平洋巨型章鱼是170余种巨型章鱼中的一种。人们曾经误把它们看成为海怪,实际上,它们性格平和,并不像古老传说描述的那样会攻击船只。 相似文献
99.
In this study, the relationship between latent constructs of phonological awareness (PA) and rapid automatized naming (RAN) were investigated and related to later measures of reading and spelling in children learning to read in different alphabetic writing systems (i.e., Norwegian/Swedish vs. English). 750 U.S./Australian children and 230 Scandinavian children were followed longitudinally between kindergarten and 2nd grade. PA and RAN were measured in kindergarten and Grade 1, while word recognition, phonological decoding, and spelling were measured in kindergarten, Grade 1, and Grade 2. In general, high stability was observed for the various reading and spelling measures, such that little additional variance was left open for PA and RAN. However, results demonstrated that RAN was more related to reading than spelling across orthographies, with the opposite pattern shown for PA. In addition, tests of measurement invariance show that the factor loadings of each observed indicator on the latent PA factor was the same across U.S./Australia and Scandinavia. Similar findings were obtained for RAN. In general, tests of structural invariance show that models of early literacy development are highly transferable across languages. 相似文献
100.
Silva KM Spinrad TL Eisenberg N Sulik MJ Valiente C Huerta S Edwards A Eggum ND Kupfer AS Lonigan CJ Phillips BM Wilson SB Clancy-Menchetti J Landry SH Swank PR Assel MA Taylor HB;School Readiness Consortium 《Early education and development》2011,22(3):434-460
RESEARCH FINDINGS: The purpose of this study was to examine the relations of children's effortful control and quality of relationships with teachers to school attitudes longitudinally in an ethnically diverse and economically disadvantaged sample. Data were collected as part of a larger intervention project during mid-fall, winter, and late spring (ns = 823, 722, and 758, respectively) for 2 cohorts of 3- to 5-year-olds (collected during 2 different school years). Children's effortful control was assessed in the fall with parents' and teachers' reports and 2 behavioral measures. Teacher-child relationship quality was assessed mid-year with teachers' reports of closeness and conflict. Attitudes toward school were assessed in late spring using teachers' and students' reports of school avoidance and liking. Effortful control, in general, was positively correlated with teacher-child closeness and school liking and negatively correlated with conflict and school avoidance. Using structural equation modeling and controlling for sex and ethnicity, we found that effortful control was positively related to teacher-child relationship quality, which in turn was positively related to school attitudes. Furthermore, the relation of effortful control to school attitudes was mediated by teacher-child relationship quality. PRACTICE OR POLICY: Results provide evidence for the importance of relational processes that take place within the classroom context and have implications for teachers and clinicians working to increase school success in ethnic minority and low-income children. 相似文献