根据试卷上给出的与项目管理有关的四个论文题目，选择其中一个题目，按照规定的要求写论文和摘要。
According to papers on project management and given the four papers on the subject, select one of the subjects, in accordance with the requirements of written papers and a summary.
采用该系统后，用户可以在屏幕上任意编辑试题和相应的图形，并可根据决策者的要求利用随机抽题模型生成试卷。
By using this system one can not only edit freely the paper and graphics on the screen, but also make an examination paper by selecting random model according to the users' demands.
在经典测试理论的基础上，提出了一种约束试卷生成的参数模型，并根据该模型设计了一种自动试卷生成的递归算法。
Based on the classic examination theory, a constraint-based parameter model of generating examination paper is proposed and a recursive arithmetic based on the model is designed.
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