首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   3798篇
  免费   27篇
  国内免费   27篇
教育   2182篇
科学研究   473篇
各国文化   76篇
体育   639篇
综合类   74篇
文化理论   17篇
信息传播   391篇
  2024年   14篇
  2023年   22篇
  2022年   31篇
  2021年   7篇
  2020年   23篇
  2019年   25篇
  2018年   16篇
  2017年   18篇
  2016年   12篇
  2015年   38篇
  2014年   104篇
  2013年   96篇
  2012年   233篇
  2011年   312篇
  2010年   182篇
  2009年   103篇
  2008年   216篇
  2007年   233篇
  2006年   249篇
  2005年   253篇
  2004年   214篇
  2003年   166篇
  2002年   151篇
  2001年   116篇
  2000年   144篇
  1999年   103篇
  1998年   43篇
  1997年   39篇
  1996年   44篇
  1995年   40篇
  1994年   36篇
  1993年   51篇
  1992年   39篇
  1991年   45篇
  1990年   46篇
  1989年   52篇
  1988年   30篇
  1987年   50篇
  1986年   34篇
  1985年   27篇
  1984年   20篇
  1983年   32篇
  1982年   25篇
  1981年   22篇
  1980年   14篇
  1979年   8篇
  1977年   5篇
  1959年   5篇
  1957年   6篇
  1938年   3篇
排序方式: 共有3852条查询结果,搜索用时 15 毫秒
71.
OBJECTIVE: The purpose of this paper is to present a newly developed measure of guardian support, the Needs-Based Assessment of Parental (Guardian) Support (NAPS), an empirical evaluation of that measure, and its comparison with another measure of guardian support. The theoretical model that underlies this measure applies humanistic theory and Maslow's hierarchy of needs to the understanding of guardian support. METHOD: The study employed a cross-sectional nonexperimental survey design using 183 nonoffending guardians who accompanied children presenting for a medical/forensic examination for sexual abuse. The NAPS and an existing measure of guardian support were administered during the hospital outpatient visit, and basic information concerning the child and abuse situations were gathered. RESULTS: The NAPS had robust psychometric properties and was culturally sensitive. Tests of specific hypotheses supported the construct validity of the measure and a conceptualization of guardian support as hierarchical, with four stages of support. CONCLUSIONS: The brevity and ease of administration of the NAPS for both the clinician and guardian suggest that it is a viable assessment tool. The strong support for the NAPS' underlying theoretical model suggests that the nonoffending guardians' available resources need to be considered when assessing guardian support.  相似文献   
72.
左 :剑男先生 ,你是一位青年诗人 ,又是我们杂志的副主编 ,很多同学们来信要求我们对你作一个访谈 ,不知能否请你给同学们谈谈有关读书和写作的一些问题 ?剑 :谢谢同学们的厚爱 ,我非常乐意和同学们来一起探讨有关读书及写作方面的问题。不过 ,我要事先申明一下 ,就我本人来说 ,我是不够资格上我们刊物这个栏目的 ,我只能说借这个栏目和同学们作一个交流和沟通。左 :剑男先生太谦虚了 ,是不是请你先谈一谈有关阅读方面的问题。比如你中学时代的阅读 ,你是怎样读书的 ?剑 :好的。我是文革结束后的第二年开始我的中学生活的。与文革时期那一代…  相似文献   
73.
74.
We investigated the kinds of instructional and assessment accommodations students with disabilities receive, and the extent to which instructional accommodations match assessment accommodations. Most students who had IEPs in specific content areas received instructional accommodations in those areas, and there were no differences by disability type. We provide data on the specific types of accommodations used. Overall, students' assessment accommodations matched their instructional accommodations, though many students received testing accommodations that had not been received in instruction. Implications are discussed for IEP teams who make decisions about instructional and assessment accommodations.  相似文献   
75.
对BIM国际前沿文献进行跟踪研究,梳理BIM在建设工程项目中的主要应用模式。在分析建设工程创新特性的基础上,指出BIM为建设工程项目各参与组织构建了合作创新的工作环境。依据建设工程创新类别,分析BIM应用模式的创新定位,探索BIM在建设工程创新中的价值。  相似文献   
76.
蓄电池和燃料电池是解决问题的唯一途径吗?事实上,改进常规内燃驱动汽车的设计,就能使空气较为洁净并减少石油进口。  相似文献   
77.
超导量子干涉仪(SQUID)   总被引:2,自引:0,他引:2  
Clarke  J 周忠行 《科学中国》1994,(12):23-29,14
  相似文献   
78.
Vertesi J 《Endeavour》2004,28(2):64-68
In their race to provide the ultimate guide to the moon, two 17th-century astronomers proposed lunar maps and nomenclatures that they hoped would gain international currency. But the names we use today were those proposed by the Jesuit, a friend of Galileo's persecutors, in a book whose purpose was to refute the Copernican system once and for all. We now believe that Riccioli was wrong about the universe, but why do we still use his nomenclature? The keys to this foundational visual debate in astronomical image-making are the moon maps themselves.  相似文献   
79.
A century before the outbreak of bovine spongiform encephalopathy (BSE), Great Britain and North America grappled with pleuro-pneumonia - a disease in cattle that had equally maddening consequences. Towards the end of the 19th century, this condition was at the heart of a transatlantic trade dispute that lasted for decades and attracted the attention of livestock farmers, diplomats, shipping moguls, veterinarians, public health regulators and journalists the world over. Scientific controversy aggravated the situation when there were doubts about the scientific judgment of Privy Council veterinary officials, who were simultaneously conducting disease-diagnosis activities and pushing for tighter regulations at British ports. At this point, William Williams, principal of the New Veterinary College in Edinburgh, waded into this troubled arena. His strong convictions spawned a long-running disagreement with the British Government over the diagnoses of pleuro-pneumonia in cattle imported from the USA and Canada.  相似文献   
80.
优秀的文学作品,往往有突出的细节描写。小说阅读教学中,如果我们能够引导学生抓住作品中的细节描写,来了解整个作品的人物及主题,这对学生鉴赏文学作品能力的培养和欣赏水平的提高,会大有好处的。这里就小说的细节描写在全文中的作用作浅要的分析。[编者按]  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号