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1.
论述了试题库系统的设计要求,并以《液压传动与控制》试题库为例,介绍了开发环境及主要功能,同时分析和介绍了开发难点及解决方案。  相似文献   

2.
通用试题库的研究与开发   总被引:1,自引:0,他引:1  
介绍了通用试题库的设计与实现,利用这种方法开发的试题库可以实现考试工作的现代化管理。  相似文献   

3.
《环境监测》试题库的研制   总被引:1,自引:0,他引:1  
计算机技术渗透到社会生活的各个方面,试题库在教学中的实用性也越来越突出.本文主要介绍了基于ACCESS数据库系统的<环境监测>试题库的研制过程,详细列举了试题库的调用操作方法.本论文同时比较客观地阐述了建立试题库和上机测试的实践意义.  相似文献   

4.
本以新疆医科大学教改招标项目中关于试点教研室试题库的建立为基础,构建了一个多学科的通用试题库系统模型,并在将其应用于各试点教研室试题库建立过程中,得到了一个较为实用多学科通用的试题库系统。尤其,基于通用试题库系统模型构建,设计、开发了一个较为实用的软件环境。关于通用试题库系统模型的构建,今后还需做进一步的研究,以便得到更优系统模型和解决方案。  相似文献   

5.
阐述了试题库管理系统中的试题选择原则,试题的约束条件,组卷算法及策略;介绍了所设计的理论试题库管理系统的主要功能,采用计算机提供的随机函数结合自动组卷思路确定试题库结构.两年来的实践表明,系统具有较高的效率和实用性.  相似文献   

6.
阐述了试题库管理系统中的试题选择原则,试题的约束条件,组卷算法及策略;介绍了所设计的理论试题库管理系统的主要功能,采用计算机提供的随机函数结合自动组卷思路确定试题库结构.两年来的实践表明,系统具有较高的效率和实用性.  相似文献   

7.
本文以《微机原理及应用》试题库为例,介绍了用Foxpro For Windows开发的试题库管理系统的设计与实现技术.  相似文献   

8.
本文介绍了试题库开发方法 ,并就通用试题库系统的设计原理和方法进行了详细讨论  相似文献   

9.
阐述了试题库管理系统中的试题选择原则,试题的约束条件,组卷算法及策略;介绍了所设计的理论试题库管理系统的主要功能,采用计算机提供的随机函数结合自动组卷思路确定试题库结构。两年来的实践表明,系统具有较高的效率和实用性。  相似文献   

10.
阐述了试题库管理系统中的试题选择原则,试题的约束条件,组卷算法及策略;介绍了所设计的理论试题库管理系统的主要功能,采用计算机提供的随机函数结合自动组卷思路确定试题库结构。两年来的实践表明,系统具有较高的效率和实用性。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

14.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

15.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

16.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

17.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

18.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

19.
Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of  相似文献   

20.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

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