摘要
本文在总结网上CAI已有成果的基础上，概述了未未网上CAI的特点，并提出了网上CAI系统设计的一些想法，指出了尚待研究的一些问题。
Network CAI is an inportant teaching model in future. Based on summarizing the existing achievements, this papersketches featuIes of network CAI in future, presents some idea of network CAI design and points out some open problems.
