When overridden in a derived class , gets the current item as a boxed object of the most appropriate microsoft . net framework version 2 . 0 type according to its schema type 当在派生类中重写时，根据当前项的架构类型以最合适的microsoft . net framework 2 . 0版类型的装箱对象的形式获取当前项。
This paper tends to finish the following tasks : first , it analyzes current situation of exam based on network course . , advantages and disadvantages of current computer measurement theory ( classic measurement theory and item response theory ) , and its concrete direction effect in current item bank 本论文首先对当前网络课程考试的现状进行分析，随后分析了当前计算机测量理论(经典测试理论和项目反应理论)的优缺点，及其在网络考试题库中的具体指导作用。
Management of an outstanding information item can control and manage efficiency in cost and movement etc . this paper analyzes the characteristics of information technique item , then researches management theories and mode of item current , points out the current item is still stay in the development with perfect . on the foundation , brings up item management mode in our country 本文首先分析信息技术项目特性，然后研究现有的项目管理理论和模式，指出现有的项目管理模式应用于信息技术项目的管理时还有待于发展和完善，在此基础上进而提出适于我国信息技术项目的项目管理模式。
