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   5934篇
  免费   139篇
  国内免费   335篇
教育   3623篇
科学研究   991篇
各国文化   37篇
体育   932篇
综合类   649篇
文化理论   39篇
信息传播   137篇
  2024年   3篇
  2023年   14篇
  2022年   69篇
  2021年   115篇
  2020年   153篇
  2019年   121篇
  2018年   82篇
  2017年   99篇
  2016年   130篇
  2015年   208篇
  2014年   481篇
  2013年   473篇
  2012年   549篇
  2011年   627篇
  2010年   502篇
  2009年   376篇
  2008年   357篇
  2007年   447篇
  2006年   415篇
  2005年   296篇
  2004年   236篇
  2003年   192篇
  2002年   164篇
  2001年   136篇
  2000年   93篇
  1999年   24篇
  1998年   14篇
  1997年   10篇
  1996年   5篇
  1995年   1篇
  1994年   4篇
  1993年   5篇
  1992年   4篇
  1991年   1篇
  1990年   1篇
  1988年   1篇
排序方式: 共有6408条查询结果,搜索用时 15 毫秒
81.
构建和谐社会,就是通过一系列的制度安排进行利益的调整,形成一种大体均衡的利益格局,从根本上化解目前我国社会存在的矛盾与冲突,为经济社会的可持续发展奠定基础.在诸多的不和谐因素中,城乡差距过大的问题尤为突出,而城乡差距主要体现在公共品供给制度上的不平等,因此,需要尽快完善公共财政体制,统一城乡公共品供给体制,不断增加对农村公共品的供给,为构建和谐社会奠定基础.  相似文献   
82.
万历十二年始,汤显祖在南京任官十载。在此期间,他的许多诗作都是南京城市生活的产物,对南京城市的书写包罗万象。这些诗文从市民的文化认同和立场出发,运用丰富的城市意象,将城市生活表现得淋漓尽致。  相似文献   
83.
ABSTRACT

This article explores the history of school gardens in educational projects linked to four scholars at Teachers College (Bigelow, Dewey, Kilpatrick and Carney) during the early twentieth century. It concludes that gardening activities were designed primarily for urban children who lacked experience in farming. The role of gardening in experimental schools in the North is compared with proposals for rural schools in the Midwest and for segregated schools for Black youth in the South. Various logics are identified by analysing the educational arguments used to promote or dismiss school gardening, and the rationales for educating or retaining a certain type of labour force. A combination of these arguments appears in Dewey’s vindication of the emergency production of foodstuffs during the First World War. The different logics point to the paradox connecting the themes of a ‘return to nature’ and ‘love of labour’ as constants in the school gardening discourse.  相似文献   
84.
城市旅游是现代旅游的新支撑点。通过对石家庄市区在石家庄旅游中的地位分析,提出石家庄城市旅游产品应以商务会展旅游和购物旅游为主要内容,以休闲景区旅游、工业旅游和体育赛事旅游为配套的旅游产品组合模式。  相似文献   
85.
在城市旅游商业区(RBD),不论旅游企业是否存在规模经济,在市场经济条件下,旅游者出于节约成本的行为,企业出于利润需求,使旅游企业在空间上相互靠近,相互的靠近使旅游企业和旅游者双方受益,由此,形成良性循环。  相似文献   
86.
城乡分割僵局是建立在城乡分治的行政建制基础上的,服从于工业和城市优先发展战略,并由一系列强制性政策维系。这种局面影响了我国城乡发展的协调以及整个社会经济的可持续发展。走出城乡分割的僵局迫在眉睫,关键是要加快体制和机制创新,改革二元户籍就业制度,建立城乡统筹的保障与教育制度、税收制度,财政与金融制度。  相似文献   
87.
This study examines the relationships between families and staff from community agencies and organizations in a poverty level urban neighborhood in the Northeast. A central concern of this study is to address how the existing relationships between these groups may affect urban educational restructuring efforts that encourage collaborations of families, schools, and community institutions to support the social and academic development of children. If community agencies and organizations are to engage in successful collaborations with inner city schools, it is critical that they be able to work with the children and families affiliated with these institutions. Findings from this study suggest that though these educational collaborations may yield support for children and their families, there are reasons to proceed cautiously which stem from the existing relationships between families and staff from community agencies and organizations. The relationships between these groups often rest on inherent inequalities. These inequalities stem from inequitable structural conditions which place a large population of urban residents at an economic disadvantage and compel them to seek services. Structural conditions, accompanied by public policies embedded in assumptions regarding which family members are deserving of support, subsequently has influenced who receives services. Mothers and their children typically are recipients of services. The inequalities that are inherent to these relationships, likewise, carry through to the roles that families and staff assume with each other in their daily associations.  相似文献   
88.
To find the optimal routing is always an important topic in wireless sensor networks (WSNs). Considering a WSN where the nodes have limited energy, we propose a novel Energy^*Delay model based on ant algorithms ("E&D ANTS" for short) to minimize the time delay in transferring a fixed number of data packets in an energy-constrained manner in one round. Our goal is not only to maximize the lifetime of the network but also to provide real-time data transmission services. However, because of the tradeoff of energy and delay in wireless network systems, the reinforcement learning (RL) algorithm is introduced to train the model. In this survey, the paradigm of E&D ANTS is explicated and compared to other ant-based routing algorithms like AntNet and AntChain about the issues of routing information, routing overhead and adaptation. Simulation results show that our method performs about seven times better than AntNet and also outperforms AntChain by more than 150% in terms of energy cost and delay per round.  相似文献   
89.
在公务人员职务消费领域,公务人员凭借对自身职务消费的信息优势架空主管部门和社会公众的控制,产生职务消费“异化”行为。矫正公务人员职务消费“异化”的关键在于设计一套行之有效的机制,激励和约束公务人员的公务消费行为,使其忠实体现公共利益目标。  相似文献   
90.
地被植物在城市绿化中的应用   总被引:3,自引:0,他引:3  
本文在探讨地被植物在城市绿化中的广泛应用及其分类和选择的基础上,阐明了城市生态环境的保护和建设对现代化城市发展的重要意义。  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