This paper introduces the design and implementation of group secure cooperative multi-session system based on multicast.
介绍了基于组播的安全协同多会话交谈系统的设计与实现。
2
At present, the English teaching curriculum from pre-simple, such as ABC began to learn the letters into a single phrase, sentence, the multi-session teaching.
目前，英语教学从课改前简单的ABC等字母单一学习开始演变为短语、句子、会话的多元教学。
3
However, the resulting performance can be worse with a multi-row schema, since gathering attributes out of the session might cause multiple queries.