全文获取类型
收费全文 | 2691篇 |
免费 | 27篇 |
国内免费 | 22篇 |
专业分类
教育 | 1605篇 |
科学研究 | 346篇 |
各国文化 | 7篇 |
体育 | 403篇 |
综合类 | 39篇 |
文化理论 | 16篇 |
信息传播 | 324篇 |
出版年
2023年 | 19篇 |
2022年 | 29篇 |
2021年 | 15篇 |
2020年 | 9篇 |
2019年 | 7篇 |
2018年 | 8篇 |
2017年 | 7篇 |
2016年 | 11篇 |
2015年 | 24篇 |
2014年 | 68篇 |
2013年 | 73篇 |
2012年 | 202篇 |
2011年 | 269篇 |
2010年 | 131篇 |
2009年 | 60篇 |
2008年 | 179篇 |
2007年 | 226篇 |
2006年 | 193篇 |
2005年 | 157篇 |
2004年 | 132篇 |
2003年 | 117篇 |
2002年 | 106篇 |
2001年 | 78篇 |
2000年 | 82篇 |
1999年 | 66篇 |
1998年 | 23篇 |
1997年 | 28篇 |
1996年 | 35篇 |
1995年 | 37篇 |
1994年 | 23篇 |
1993年 | 25篇 |
1992年 | 26篇 |
1991年 | 24篇 |
1990年 | 27篇 |
1989年 | 20篇 |
1988年 | 14篇 |
1987年 | 18篇 |
1986年 | 19篇 |
1985年 | 16篇 |
1984年 | 12篇 |
1983年 | 20篇 |
1982年 | 10篇 |
1981年 | 17篇 |
1980年 | 8篇 |
1977年 | 9篇 |
1958年 | 3篇 |
1957年 | 5篇 |
1948年 | 3篇 |
1937年 | 3篇 |
1927年 | 3篇 |
排序方式: 共有2740条查询结果,搜索用时 15 毫秒
81.
Improbable or impossible? How children reason about the possibility of extraordinary events 总被引:1,自引:1,他引:0
The present study investigated the development of possibility-judgment strategies between the ages of 4 and 8. In Experiment 1, 48 children and 16 adults were asked whether a variety of extraordinary events could or could not occur in real life. Although children of all ages denied the possibility of events that adults also judged impossible, children frequently denied the possibility of events that adults judged improbable but not impossible. Three additional experiments varied the manner in which possibility judgments were elicited and confirmed the robustness of preschoolers' tendency to judge improbable events impossible. Overall, it is argued that children initially mistake their inability to imagine circumstances that would allow an event to occur for evidence that no such circumstances exist. 相似文献
82.
Ortiz R Jiménez JE García Miranda E Guzmán Rosquete R Hernández-Valle I Rodrigo M Estévez A Díaz A Hernández Expósito S 《Journal of learning disabilities》2007,40(1):80-92
The aims of this study were (a) to determine whether Spanish children with reading disabilities (RD) show a speech perception deficit and (b) to explore the locus and nature of this perceptive deficit. A group of 29 children with RD, 41 chronological age-matched controls, and 27 reading ability-matched younger controls were tested on tasks of speech perception. The effect of linguistic unit (word vs. syllable) and type of phonetic contrast (voicing, place and manner of articulation) were analyzed in terms of the number of errors and the response time. The results revealed a speech perception deficit in Spanish children with RD that was independent of the type of phonetic contrast and of linguistic unit. 相似文献
83.
Collishaw S Pickles A Messer J Rutter M Shearer C Maughan B 《Child abuse & neglect》2007,31(3):211-229
OBJECTIVE: Child abuse is an important risk for adult psychiatric morbidity. However, not all maltreated children experience mental health problems as adults. The aims of the present study were to address the extent of resilience to adult psychopathology in a representative community sample, and to explore predictors of a good prognosis. METHODS: Data are drawn from a follow-up of the Isle of Wight study, an epidemiological sample assessed in adolescence and at midlife. Ratings of psychiatric disorder, peer relationships and family functioning were made in adolescence; adult assessments included a lifetime psychiatric history, personality and social functioning assessments, and retrospective reports of childhood sexual and physical abuse. RESULTS: Ten percent of individuals reported repeated or severe physical or sexual abuse in childhood. Prospective measures revealed increased rates of adolescent psychiatric disorders in this group. Rates of adult psychopathology were also high. A substantial minority of abused individuals reported no mental health problems in adult life. Resilience of this kind was related to perceived parental care, adolescent peer relationships, the quality of adult love relationships, and personality style. CONCLUSION: Good quality relationships across childhood, adolescence and adulthood appear especially important for adult psychological well being in the context of childhood abuse. 相似文献
84.
Predictors of psychological distress and positive resources among Palestinian adolescents: trauma, child, and mothering characteristics 总被引:1,自引:0,他引:1
OBJECTIVE: The aim was to examine how traumatic and stressful events, responses to violence, child characteristics, and mothering quality, as measured in middle childhood predict psychological distress and positive resources in adolescence. METHOD: The participants were 65 Palestinian adolescents (17+/-.85 years; 52% girls), who had been studied during the First Intifada (T1), during the Palestinian Authority rule (T2) and before the Second Al Aqsa Intifada (T3) in Gaza. Psychological distress was indicated by PTSD, and depressive symptoms and positive resources by resilient attitudes and satisfaction with quality of life, all measured at T3. The predictors that were measured at T1 were exposure to military violence, active coping with violence and children's intelligence, cognitive capacity, and neuroticism. Mothering quality and stressful life-events were measured at T2, the former reported by both the mother and the child, and the latter by the mother. RESULTS: Adolescents' PTSD symptoms were most likely if they had been exposed to high levels of traumatic and stressful experiences and had poor cognitive capacity and high neuroticism in middle childhood. Only high levels of childhood military violence and stressful life-events predicted high depressive symptoms and low satisfaction with quality of life in adolescence. CONCLUSIONS: Military violence in childhood forms risks for both increased psychological distress and decreased positive resources. However, child characteristics such as cognitive capacity and personality are important determinants of psychological vulnerability in military trauma. 相似文献
85.
Prevalence of child sexual abuse reported by a cross-sectional sample of New Zealand women 总被引:1,自引:0,他引:1
OBJECTIVE: The objective is to describe the prevalence of child sexual abuse (CSA) among women in New Zealand, document ethnic specific rates, and outline the frequency of abuse experienced and the most commonly identified perpetrators. Associations between CSA and later adverse consequences were also explored. METHODS: Retrospective report from a random sample of 2,855 women aged 18-64 years old in two regions in New Zealand. Face-to-face interviews with one randomly selected woman from each household were conducted. RESULTS: The overall prevalence rates for CSA were 23.5% for women from the urban region and 28.2% from the rural region. In both urban and rural regions, Māori women more frequently reported experiences of CSA than women from European and other ethnic groups (urban: 30.5% vs. 17.0% and rural: 35.1% vs. 20.7%). The median age of onset of the abuse was 9 years, and the median estimated age of the abuser was 30 years. Half of those who experienced CSA reported that it occurred once or twice, 27% "a few times," and 23% "multiple times." Sole perpetrators were involved in 83% of cases. The majority of cases were perpetrated by a family member, most frequently male. Compared with non-victims, victims of CSA were twice as likely to experience later intimate partner violence and violence by others. CONCLUSIONS: This study reports on a large, population-based sample in an ethnically diverse population in New Zealand, providing the first ethnic-specific rates of CSA available. Findings suggest important priorities for prevention and intervention activities. 相似文献
86.
OBJECTIVES: The study was designed to explore whether the credibility of children's statements regarding their alleged experiences of child sexual abuse could be assessed in a more valid and reliable way when investigative interviews were conducted using the NICHD protocol rather than in an unstructured manner. METHODS: Forty-two experienced Israeli youth investigators each assessed the credibility of allegations of sexual abuse made by alleged victims of sexual abuse when interviewed either with or without the protocol. Half of the alleged incidents were judged likely to have happened ("plausible") on the basis of independent evidence, while half were deemed unlikely to have happened ("implausible"). RESULTS: More non-protocol than protocol interviews were rated as "No judgment possible" rather than either credible or incredible. Allegations made in protocol interviews were more accurately rated as credible or incredible when they were either plausible or implausible, respectively, than those made in non-protocol statements. Levels of inter-rater reliability were also higher when protocol interviews were rated. The differences were significant only for plausible cases, however. CONCLUSIONS: The use of the NICHD protocol facilitated the assessment of credibility by child investigators although incredible allegations (those describing incidents that were unlikely to have happened) remained difficult to detect, even when the protocol was used. 相似文献
87.
88.
89.
90.
<正>习作要求五年级下册,一共有八个习作要求,比如,写自己成长的——“那一刻,我长大了”,写阅读一本书或一篇文章的——“读《×××》有感”,写脑洞大开的——“神奇的探险之旅”……形式多样,内容丰富。今天,老师为大家讲解两个快速提升习作能力的小妙招儿,希望对你复习本册课本的习作内容有帮助。 相似文献