全文获取类型
收费全文 | 656篇 |
免费 | 11篇 |
国内免费 | 41篇 |
专业分类
教育 | 357篇 |
科学研究 | 93篇 |
各国文化 | 5篇 |
体育 | 46篇 |
综合类 | 24篇 |
信息传播 | 183篇 |
出版年
2024年 | 1篇 |
2023年 | 2篇 |
2022年 | 10篇 |
2021年 | 18篇 |
2020年 | 19篇 |
2019年 | 15篇 |
2018年 | 13篇 |
2017年 | 17篇 |
2016年 | 12篇 |
2015年 | 20篇 |
2014年 | 73篇 |
2013年 | 59篇 |
2012年 | 53篇 |
2011年 | 59篇 |
2010年 | 53篇 |
2009年 | 45篇 |
2008年 | 44篇 |
2007年 | 44篇 |
2006年 | 32篇 |
2005年 | 35篇 |
2004年 | 23篇 |
2003年 | 8篇 |
2002年 | 18篇 |
2001年 | 8篇 |
2000年 | 15篇 |
1999年 | 6篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1993年 | 1篇 |
1989年 | 1篇 |
排序方式: 共有708条查询结果,搜索用时 15 毫秒
121.
金针暗度作为诗文谋篇布局的一种重要方法,在文学作品中大量运用,具有特殊的艺术魅力,理应成为我们关注的课题。从文学评点史料出发,重点探讨评点家对金针暗度的批评指涉予以言说,其审美意蕴表现为:委婉含蓄,曲尽人意;轻笔点染,妙阐幽微;秘移潜换,巧妙布局。 相似文献
122.
Infection with hepatitis C virus (HCV) affects approximately 170 million people worldwide. However, no vaccine or immunoglobulin
is currently available for the prevention of HCV infection. The standard of care (SOC) involving pegylated interferon-α (PEG-IFN
α) plus ribavirin (RBV) for 48 weeks results in a sustained virologic response in less than 50% of patients with chronic hepatitis
C genotype 1, the most prevalent type of HCV in North America and Europe. Recently, reliable in vitro culture systems have
been developed for accelerating antiviral therapy research, and many new specifically targeted antiviral therapies for hepatitis
C (STAT-C) and treatment strategies are being evaluated in clinical trials. These new antiviral agents are expected to improve
present treatment significantly and may potentially shorten treatment duration. The aim of this review is to summarize the
current developments in new anti-HCV drugs. 相似文献
123.
124.
顾霞 《昭通师范高等专科学校学报》2012,34(4):26-31
土司是一种官职,是明清时期中央王朝册封少数民族地区的首领为世袭地方官,通过他们对当地各族人民进行管理,以达到加强对少数民族地区统治。学术界对云南的土司研究已取得较大成就,一大批学术论文和专著的问世,为历史时期云南土司的设立、演变提供了新的视角。 相似文献
125.
Comprehensive reviews of child death are increasingly conducted throughout the world, although limited information is available about how this information is systematically used to prevent future deaths. To address this need, we used cases from 2005 to 2009 in the U.S. National Child Death Review Case Reporting System to compare child and offender characteristics and to link that information with actions taken or recommended by review teams. Child, caretaker, and offender characteristics, and outcomes were compared to team responses, and findings were compared to published case series. Among 49,947 child deaths from 23 states entered into the Case Reporting System during the study period, there were 2,285 cases in which child maltreatment caused or contributed to fatality. Over one-half had neglect identified as the maltreatment, and 30% had abusive head trauma. Several child and offender characteristics were associated with specific maltreatment subtypes, and child death review teams recommended and/or planned several activities in their communities. Case characteristics were similar to those published in other reports of child maltreatment deaths. Teams implemented 109 actions or strategies after their review, and we found that aggregating information from child death reviews offers important insights into understanding and preventing future deaths. The National Child Death Review Case Reporting System contains information about a large population which confirms and expands our knowledge about child maltreatment deaths and which can be used by communities for future action. 相似文献
126.
127.
魏晋南北朝石刻文献是我国浩如烟海的石刻文献的一部分,自宋代以来,石刻文献的整理和研究日盛,其中以清代的研究成果最为丰厚。魏晋南北朝时期是汉字发展史上今文字阶段重要的过渡时期,它上承汉隶揩化,下启唐宋楷书的定形,研究价值相当重要。梳理此时期石刻文献文字方面的研究成果,是必要和有益的。 相似文献
128.
Dual language exposure and bilingualism are relatively common experiences for children. The present review set out to synthesize the existing research on cognitive development in bilingual children and to identify the gaps and the methodological concerns present in the existing research. A search of major databases for research conducted with typically developing, preschool-age dual language learners between 2000 and 2013 yielded 102 peer-reviewed articles. The existing evidence points to areas of cognitive development in bilingual children where findings are robust or inconclusive, and reveals variables that influence performance. The present review also identifies areas for future research and methodological limitations. 相似文献
129.
130.
张梦林 《中国科教创新导刊》2013,(30):192-192
大量的英文阅读对于提升高中生英语写作水平具有重要的作用。本文分析了英文报刊在提高高中生英文写作水平方面的优势,并且提出了利用英文报刊阅读提升英语写作水平的具体表现。 相似文献