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实施多年的信息科技学科学业水平等级考试的评价内容主要局限于学科的知识和技能,对上海二期课改提出的三维教学目标中的“过程与方法”“情感、态度与价值观”等方面,等级考试这种学业水平评价方式（结果评价）是无法全面反映的。 相似文献
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丁瑾 《中国科教创新导刊》2013,(30):138-138
本文就初中英语教学存在的问题展开探讨,并制定了科学有效的应对策略,对提升教学水平,优化教学效果,有重要的实践意义。 相似文献
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会计电算化是把以电子计算机为主的当代电子技术和信息技术应用到会计实务中,并用电子计算机作为工具替代手工记账、算账、报账等,实现对会计信息的收集、整理、输出、分析、预测、决策等,以提高财会管理水平和经济效益,进而实现会计工作的现代化. 相似文献
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针对TCP在无线网络中性能下降的现象,查找了主要原因,提出了一种新的基于端到端TCP改进方案,并分别从判别的状态和采取的响应措施两个方面对改进方案进行详细阐述。 相似文献
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本文通过对Reed Elsevier等国际典型学术出版商的调查分析,从员工、用户、社区、供应商和环境等利益相关主体的角度构建学术出版商社会责任的框架结构,将其社会责任细化,并对其基本的社会责任、独特的社会责任、必须履行的和重点关注的社会责任进行了探讨.在对这些学术出版商实践活动中存在的问题进行分析的基础上,进一步提出对学术出版商履行社会责任的相关建议. 相似文献
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Arthur Miller was considered as the most famous dramatist in America after the World War II, and his representative work Death of a Salesman was recognized as the best play in America during the post-war years. It was also considered to be one of the best three plays in the history of American drama; with A Streetcar Named Desire and Long Day’s Journey into Night.Through the failure of two generations, this play addressed the painful conflicts within one family, and it also tackled greater issues regarding to Americans’ national values.As an average person, Willy Loman had experienced hopes and pains, struggles and frustrations as well as dreams and disillusions, at last he chose to commit suicide. Based on the existent materials, the predecessor’s researches as well as her own thinking, the author of this paper gives a brief analysis of the leading role’s tragic fate, which mainly elaborates three important stages of Willy Loman’s tragic life: disillusion of the American Dream, the abandonment and the betrayal, aiming to decode the root of Loman’s tragedy from the perspectives of society, family and the protagonist’s character. In conclusion, the paper tries to explore Arthur Miller’s inner world and the resources of his creation as far as possible, hoping to give readers of this paper certain inspiration. 相似文献
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[目的/意义] 在知识经济时代, 保障公众平等、低成本的知识获取成为学术出版商主要的社会责任之一。理清学术出版商的社会责任是什么, 学术出版商应如何推动公众的知识获取, 为学术出版商更好地履行社会责任提供借鉴。[方法/过程] 通过对Reed Elsevier等国际四大学术出版巨头的调查, 总结学术出版商推动知识获取的实践现状和存在的问题, 针对学术出版商如何推动知识获取提出建议。[结果/结论] 通过调查研究, 发现学术出版商在推动个人、机构和国家的知识获取方面确实做出了一些努力, 但是也存在信息公平、免费资源相对较少、涉及范围比较有限等问题。笔者认为, 学术出版商应在保障公众平等地获取信息资源、加强社会公共知识建设、缩小发展中国家与发达国家的信息鸿沟等方面有所作为。 相似文献
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In networked control system(NCS)where control loop is closed over communication network, limited data rate may deteriorate control performance even destabilize the control system. In this paper, performance analysis of a typical second-order control system with data rate constraints is conducted, and the concept of critical data rate(CDR)is presented. In order to find the CDR in NCS, an approximate searching method is proposed to guarantee acceptable control performance. 相似文献