针对工程制图多媒体CAI课件在制作方面存在的一些不足，如适用面窄、类型单一和不可编辑等。提出了如何克服这些弊端，使课件具有开放性的一些建设性的构想。

There are some shortages in the way engineering drawing multimedia CAI courseware are designed and used such as poor flexibility, single type and unedited.

youdao

I heard that MIT offers Open Course Ware to students. What do you think of it?

我听说麻省理工给学生提供开放式课件。你有什么看法？

开放式的课程？ - SpeakingMax英语口语达人