Moreover, we used customized arithmetic to calculate work item status, based on the data relative to the time scales. 而且,我们使用定制的运算规则,来计算基于时间估计相关数据的工作项状态。
An arithmetic being capable of dynamic selecting from tested questions based on item response theory is first proposed and electronic test system based on this arithmetic is designed. 运用项目反应理论的参数模型,建立了一种动态抽题算法,并在此基础上设计了一种基于动态抽题算法的考试系统。