摘要: Unit 1 学习目标: 1. how an application use the Internet 2. The structure of the Internet:The 4 layer model 3. The Internet protocol(IP) 4. Basic architect 阅读全文
posted @ 2019-11-12 23:20 飞飞翔滴少年 阅读(267) 评论(0) 推荐(0) 编辑