1. In stead of printingbooks in paper version, the university decides to release only online versionof textbooks. Discuss at least an advantage and disadvantage of thischange.
2. Some professorsprefer to answer students’ questions in the end of the lecture, and others stopat different points to answer students’ questions. Which style do you think isbetter for learning?
窥视卡
雷达卡
楼主
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
千斤顶
显身卡