全文获取类型
收费全文 | 2241篇 |
免费 | 6篇 |
国内免费 | 78篇 |
专业分类
教育 | 1291篇 |
科学研究 | 513篇 |
各国文化 | 6篇 |
体育 | 272篇 |
综合类 | 38篇 |
文化理论 | 11篇 |
信息传播 | 194篇 |
出版年
2024年 | 6篇 |
2023年 | 20篇 |
2022年 | 22篇 |
2021年 | 17篇 |
2020年 | 9篇 |
2019年 | 22篇 |
2018年 | 19篇 |
2017年 | 5篇 |
2016年 | 16篇 |
2015年 | 28篇 |
2014年 | 122篇 |
2013年 | 63篇 |
2012年 | 135篇 |
2011年 | 189篇 |
2010年 | 95篇 |
2009年 | 69篇 |
2008年 | 136篇 |
2007年 | 163篇 |
2006年 | 128篇 |
2005年 | 98篇 |
2004年 | 97篇 |
2003年 | 120篇 |
2002年 | 76篇 |
2001年 | 83篇 |
2000年 | 77篇 |
1999年 | 50篇 |
1998年 | 46篇 |
1997年 | 34篇 |
1996年 | 30篇 |
1995年 | 33篇 |
1994年 | 24篇 |
1993年 | 26篇 |
1992年 | 34篇 |
1991年 | 25篇 |
1990年 | 18篇 |
1989年 | 18篇 |
1988年 | 17篇 |
1987年 | 18篇 |
1986年 | 24篇 |
1985年 | 12篇 |
1984年 | 14篇 |
1983年 | 16篇 |
1982年 | 13篇 |
1981年 | 12篇 |
1980年 | 6篇 |
1978年 | 4篇 |
1959年 | 6篇 |
1958年 | 3篇 |
1956年 | 4篇 |
1954年 | 2篇 |
排序方式: 共有2325条查询结果,搜索用时 15 毫秒
31.
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
32.
33.
公民道德是先进文化的重要内容,其培养的关键期是小学教育阶段.在小学阶段公民道德培养的方法主要有:自然和社会环境中的环境潜移默化法,树立权利意识法,重点时机培养法,将学生的道德水平进行良好的培养,以便提高其道德水平. 相似文献
34.
本文以社会化问答社区为例,探究疫情期间健康信息需求的主题与用户情感变化特征,以期改进问答社区在突发事件中的应急策略,通过数据采集和清洗、文本预处理、LDA主题模型、BERT+BiLSTM情感分类模型对25540条数据进行知识挖掘和主题-情感协同分析。研究结果显示,本文使用的方案能够有效捕捉疫情期间网民需求健康信息的主题特征。在情感分类方面,BERT+BiLSTM模型的分类准确率较基线模型提升了11.75%。为更好地应对突发公共卫生事件,本文建议社会化问答社区应自行生产科学的健康信息、提高针对主题的舆情监控力度并积极引导用户认知。 相似文献
35.
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
36.
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
37.
Hearing loss during the critical period for language acquisition restricts spoken language input. This input limitation, in turn, may hamper syntactic development. This study examined the comprehension, production, and repetition of Wh-questions in deaf or hard-of-hearing (DHH) children. The participants were 11 orally trained Hebrew-speaking children aged 9.1-12.4 with moderate-to-profound hearing loss from birth, who consistently used hearing aids or cochlear implants and who had difficulties understanding relative clauses. Experiment 1 tested the comprehension of Wh-questions using a picture selection task, comparing subject with object questions and who- with which-questions; Experiment 2 tested the production of subject and object who-questions using an elicitation task; and Experiment 3 tested the repetition of Wh-questions and other structures derived by Wh-movement. All the DHH participants showed difficulty in the comprehension, production, and repetition of object questions, and their performance was significantly below that of hearing children. In contrast, they repeated embedded sentences without movement well, indicating that their deficit is in syntactic movement rather than embedding or the CP node in the syntactic tree. The results provide additional evidence that DHH children have difficulties with Wh-movement and emphasize that Wh-questions, which are crucial for communication, can be severely impaired in these children. 相似文献
38.
随着社会进入信息化时代,多媒体已经广泛用于教学领域。教师通过多媒体可以非常形象直观的讲述清楚过去很难描述的课程内容,从而调动学生的学习积极性,提高学生的学习兴趣。本文总结了多媒体教学的5个主要优点,并以一节生理课为例,论述了多媒体技术在教学中的具体应用,最后从4个方面总结了多媒体教学的不足,探讨了解决策略。 相似文献
39.
中次央 《小作家选刊(小学)》2011,(9):58-58
作文教学是语文教学中的重点和难点,如何指导学生写作是长期来语文教师力求突破的一个课题,下面我就谈谈在新课改下,如何指导学生写作。 相似文献
40.
学校是加强和改进未成年人思想道德建设的主阵地,主课堂。学校的行为直接影响未成年人的世界观、是非观、价值观。最近“解放论坛”有文章指出:“青少年自身的生理和心理特点是天然的反社会化人格。表现为冲动,感性丰富而理性脆弱,凭感觉行事,模仿力极强。反抗权威,无视规则,背叛秩序。如果缺乏正确引导,一旦形成行为习惯,极容易导致令人忧心忡忡的未成年人问题……研究表明,破碎的家庭,落后的学校教育和失衡的社会教育,是造成青少年‘反社会化’人格特征的主要原因。” 相似文献