全文获取类型
收费全文 | 7396篇 |
免费 | 63篇 |
国内免费 | 136篇 |
专业分类
教育 | 4108篇 |
科学研究 | 1451篇 |
各国文化 | 52篇 |
体育 | 1257篇 |
综合类 | 118篇 |
文化理论 | 24篇 |
信息传播 | 585篇 |
出版年
2024年 | 31篇 |
2023年 | 59篇 |
2022年 | 45篇 |
2018年 | 29篇 |
2017年 | 40篇 |
2016年 | 50篇 |
2015年 | 84篇 |
2014年 | 370篇 |
2013年 | 132篇 |
2012年 | 326篇 |
2011年 | 444篇 |
2010年 | 206篇 |
2009年 | 151篇 |
2008年 | 375篇 |
2007年 | 574篇 |
2006年 | 448篇 |
2005年 | 417篇 |
2004年 | 378篇 |
2003年 | 381篇 |
2002年 | 360篇 |
2001年 | 193篇 |
2000年 | 200篇 |
1999年 | 140篇 |
1998年 | 44篇 |
1997年 | 69篇 |
1996年 | 60篇 |
1995年 | 69篇 |
1994年 | 64篇 |
1993年 | 76篇 |
1992年 | 79篇 |
1991年 | 79篇 |
1990年 | 92篇 |
1989年 | 91篇 |
1988年 | 98篇 |
1987年 | 98篇 |
1986年 | 119篇 |
1985年 | 121篇 |
1984年 | 98篇 |
1983年 | 89篇 |
1982年 | 92篇 |
1981年 | 67篇 |
1980年 | 38篇 |
1960年 | 36篇 |
1959年 | 48篇 |
1958年 | 51篇 |
1957年 | 36篇 |
1956年 | 64篇 |
1955年 | 69篇 |
1954年 | 30篇 |
1953年 | 41篇 |
排序方式: 共有7595条查询结果,搜索用时 62 毫秒
81.
FLOSSWorld调查的主体由5部分构成,包括:个人(Private sector)、政府(Government sector)、开源社区参与者(Open Source participants community)、高校管理者(Heigher Education Institutes——Administrators)、高校信息部门主管(Heigher Education Institute——ITManagers) 相似文献
82.
Puolakanaho A Ahonen T Aro M Eklund K Leppänen PH Poikkeus AM Tolvanen A Torppa M Lyytinen H 《Journal of learning disabilities》2008,41(4):353-370
The authors examined second grade reading accuracy and fluency and their associations via letter knowledge to phonological and language predictors assessed at 3.5, 4.5, and 5.5 years in children in the Jyv?skyl? Longitudinal Study of Dyslexia. Structural equation modeling showed that a developmentally highly stable factor (early phonological and language processing [EPLP]) behind key dyslexia predictors (i.e., phonological awareness, short-term memory, rapid naming, vocabulary, and pseudoword repetition) could already be identified at 3.5 years. EPLP was significantly associated with reading and spelling accuracy and by age with letter knowledge. However, EPLP had only a minor link with reading fluency, which was additionally explained by early letter knowledge. The results show that reading accuracy is well predicted by early phonological and language skills. Variation in fluent reading skills is not well explained by early skills, suggesting factors other than phonological core skills. Future research is suggested to explore the factors behind the development of fast and accurate decoding skills. 相似文献
83.
Tolar TD Lederberg AR Gokhale S Tomasello M 《Journal of deaf studies and deaf education》2008,13(2):225-240
Early developmental psychologists viewed iconic representation as cognitively less complex than other forms of symbolic thought. It is therefore surprising that iconic signs are not acquired more easily than arbitrary signs by young language learners. One explanation is that children younger than 3 years have difficulty interpreting iconicity. The current study assessed hearing children's ability to interpret the meaning of iconic signs. Sixty-six 2.5- to 5-year-olds who had no previous exposure to signs were required to match iconic signs to pictures of referents. Whereas few of the 2.5-year-olds recognized the meaning of the iconic signs consistently, more than half of the 3.0-year-olds and most of 3.5-year-olds performed above chance. Thus, the ability to recognize the meaning of iconic signs gradually develops during the preschool years. Implications of these findings for sign language development, receptive signed vocabulary tests, and the development of the ability to interpret iconic symbols are discussed. 相似文献
84.
Masten CL Guyer AE Hodgdon HB McClure EB Charney DS Ernst M Kaufman J Pine DS Monk CS 《Child abuse & neglect》2008,32(1):139-153
OBJECTIVE: The purpose of this study is to examine processing of facial emotions in a sample of maltreated children showing high rates of post-traumatic stress disorder (PTSD). Maltreatment during childhood has been associated independently with both atypical processing of emotion and the development of PTSD. However, research has provided little evidence indicating how high rates of PTSD might relate to maltreated children's processing of emotions. METHOD: Participants' reaction time and labeling of emotions were measured using a morphed facial emotion identification task. Participants included a diverse sample of maltreated children with and without PTSD and controls ranging in age from 8 to 15 years. Maltreated children had been removed from their homes and placed in state custody following experiences of maltreatment. Diagnoses of PTSD and other disorders were determined through combination of parent, child, and teacher reports. RESULTS: Maltreated children displayed faster reaction times than controls when labeling emotional facial expressions, and this result was most pronounced for fearful faces. Relative to children who were not maltreated, maltreated children both with and without PTSD showed enhanced response times when identifying fearful faces. There was no group difference in labeling of emotions when identifying different facial emotions. CONCLUSIONS: Maltreated children show heightened ability to identify fearful faces, evidenced by faster reaction times relative to controls. This association between maltreatment and atypical processing of emotion is independent of PTSD diagnosis. 相似文献
85.
86.
《当代文学简介》是布斯在云南大学的讲稿,这里选译了其中的第一讲:“英国文学的新时代”和第十二讲:“威廉·萨默赛特·毛姆。”第一讲是英国当代文学概述,以后各讲均为作家评介,今后将继续选译部分作家评介。 相似文献
87.
《语文教学通讯·B刊》编辑部 《中国小学语文教学论坛》2016,(6)
如果你希望一个写文章不通的人看了两本语法书就把文章写通,一个不会写文章的人看了两本语法书就会写文章,那你一定要失望.语法万能和语法无能是两种极端的看法,但后者常常是由前者转变过来的.
——吕叔湘《语法三问》,《语文学习》,1953年第8期 相似文献
88.
基于国家教育标准的地理教材 总被引:1,自引:0,他引:1
为进一步增强美国地理教育。我们要做的许多事情之一就是改进教材的质量。其中最主要的三个方面的任务是:(1)开发优良的教材,(2)利用教师联盟的在职培训网络和职前教育计划培训教师使用这种新教材,(3)通过提供强有力的课程指导,特别是将教材与师资培训和基于国家 相似文献
89.
Dr.Robert S.Herman 《海外英语》2003,(6):4-5
Old age gives us the privilege to explore, to innovate, to challenge.Dear Friends,This is our twelfth monthly column and the first-year anniversary of our conversation together in the pages of Overseas English. We call this a milestone in English. Is there a Chinese word for it?I would like to begin our column with one of my own poems. 相似文献