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   14268篇
  免费   382篇
  国内免费   46篇
财政金融   1692篇
工业经济   896篇
计划管理   3141篇
经济学   2574篇
综合类   1352篇
运输经济   105篇
旅游经济   88篇
贸易经济   1802篇
农业经济   954篇
经济概况   2055篇
信息产业经济   3篇
邮电经济   34篇
  2024年   26篇
  2023年   133篇
  2022年   292篇
  2021年   462篇
  2020年   407篇
  2019年   254篇
  2018年   247篇
  2017年   380篇
  2016年   297篇
  2015年   407篇
  2014年   538篇
  2013年   748篇
  2012年   1167篇
  2011年   1659篇
  2010年   1472篇
  2009年   1041篇
  2008年   1060篇
  2007年   949篇
  2006年   963篇
  2005年   903篇
  2004年   249篇
  2003年   238篇
  2002年   211篇
  2001年   202篇
  2000年   93篇
  1999年   78篇
  1998年   43篇
  1997年   35篇
  1996年   32篇
  1995年   14篇
  1994年   13篇
  1993年   22篇
  1992年   19篇
  1991年   8篇
  1990年   6篇
  1989年   6篇
  1988年   2篇
  1987年   3篇
  1985年   4篇
  1984年   6篇
  1983年   1篇
  1982年   1篇
  1981年   2篇
  1979年   1篇
  1978年   2篇
排序方式: 共有10000条查询结果,搜索用时 437 毫秒
871.
We develop an efficient algorithm to implement the adjoint method that computes sensitivities of an interest rate derivative to different underlying rates in the co-terminal swap-rate market model. The order of computation per step of the new method is shown to be proportional to the number of rates times the number of factors, which is the same as the order in the LIBOR market model.  相似文献   
872.
In the age of growing foreign tourism, providing excellent quality service at hotels is increasingly more important. Service quality and customer satisfaction have gradually been recognized as key factors used to gain competitive advantage and customer retention. Most companies conducted satisfaction surveys of their customers, with a view of using analysed results to identify attributes of potential improvement. However, this kind improvement decisions on the attributes with a lower satisfaction level needs not to be appropriated. Thus, to achieve higher levels of overall satisfaction with the hotel experience, this study combined four simple methods, including Kano’s model, refined Kano’s model, Importance-Satisfaction model, and the Improvement index, to evaluate two types of hotels. The integrated approach of service quality measurement is based on the importance and satisfaction survey of the quality attributes. The survey, with 24 attributes and service items, were administrated to a random sample of 400 customers at one business hotel and one resort hotel in Taiwan. The strategies of these two kinds of hotels were compared and discussed in this study. On the basis of the key quality attributes identified by employing the integrated approach, which are significantly different from those identified on the basis of a simple satisfaction survey, hotels can make appropriate decisions on specific areas for improvement to further enhance the hotel service quality in Taiwan.  相似文献   
873.
俄罗斯是世界上最重要的经济体之一,其经济地位不可小视。经历了经济转轨的痛苦过程,自1999年至今,俄罗斯的经济有了长足的发展,国有经济的转轨、各个行业的复苏发展,使得资产评估行业得以  相似文献   
874.
进一步提高中国花卉产业国际竞争力对策研究   总被引:1,自引:0,他引:1  
进入21世纪以来,我国花卉产业一直呈现出快速发展的态势,生产规模已居世界首位,但也存在着横向扩展过快、纵向挖潜不足的问题。在国际竞争日益激烈的背景下,新兴花卉生产国哥伦比亚、肯尼亚、马来西亚已分别成为全球最大的康乃馨、玫瑰和菊花的生产、出口基地,印度、越南等国也在迅速崛起。中国花卉产业应该通过合理有效的制度创新,建立经营型行业协会,加强物流体系建设,引导资源禀赋优势向竞争优势转变。  相似文献   
875.
Using the instrumental variable model and the regression discontinuity approach,this paper explores how access to primary education affects the Chinese labor market and helps people to escape poverty.Several important findings are obtained.The popularization of primary education has significantly reduced poverty in China,especially in urban areas.In contrast,the Compulsory Education Law has not been well implemented for older children in rural areas.In addition,the labor market premium for completing primary education is much larger in urban areas than in rural areas.Poor rural school quality might explain this rural-urban disparity.Effort needs to be made to further reduce poverty by ensuring adequate financial resources for primary education in poor areas and improving school quality in rural China.  相似文献   
876.
张雄  杨文红 《价值工程》2012,31(14):232-233
讨论了双差数列与周期双差数列的通项公式以及求和公式。  相似文献   
877.
采用文献资料法、问卷调查法结合统计学和计算机知识,构建了体育教育专业学生排球普修课成绩评价体系,该评价体系对今后的教学具有指导作用。  相似文献   
878.
近年来消防搜救犬各类灾害救援中发挥了越来越重要的作用,关于建立全国性的消防搜救犬培训基地的方案也逐步实施。本文就如何更好地组织基地的培训教学工作,浅谈了培训教学要从实战的角度出发;如何建立健全一套科学而完整的培训教学计划;努力提高培训教学水平等方面做了介绍。  相似文献   
879.
文章通过结合自身工作的实际情况,分析了在竣工资料管理工作中存在的问题,并对相关问题提出了解决方案,在实践中取得了较好的效果,一定程度上解决了竣工资料管理工作中出现的问题,达到了资料编制及时、规范的目的。  相似文献   
880.
Zhagana Agriculture-Forest-Animal Husbandry Composite System (ZCS) is the first Globally Important Agricultural Heritage Systems site in the Tibetan Plateau. Similar to many traditional agricultural regions, with the development of tourism and leisure agriculture, the peasant households in ZCS have gradually changed their livelihood strategies and livelihood activities in the past 10 years, resulting in the disappearance of some traditional farming methods and agricultural landscapes with a long history. By taking livelihood assets as the entry point and livelihood strategies as the core, this paper analyzed the basic situation of households’ livelihood and the transition mechanism of different livelihood strategies in order to offer suggestions for the dynamic conservation and sustainable development of Agricultural Heritage Systems (AHS). (1) The livelihood strategies of peasant households in ZCS can be divided into two major categories: specialized strategies and diversified strategies. (2) According to the empirical calculation of the livelihood asset accounting framework of AHS, the average livelihood asset value of peasant households in ZCS is 2.040, showing that the situation of peasant households’ livelihood is inadequate. (3) The transition of peasant households’ livelihood strategies from traditional strategy to specialized or diversified livelihood strategies is mainly influenced by natural assets, human assets, cultural assets, social assets and informational assets. In order to meet the growing material and spiritual needs of peasant households and achieve the sustainable development of ZCS simultaneously, it is suggested that the agriculture-forestry-animal husbandry-tourism composite strategies shall be taken as the development direction of peasant households’ livelihood strategies.  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