11.1DNS基础 11.2域名解析 11.3域名解析应用实例

9.1传输层协议 9.2传输控制协议TCP 9.3用户数据报协议(UDP)

Chapter Four Computer Software ordPercE x3 Unit14 Part 1 Notes to Text Part4 Extensive Reading

Chapter Four High-level Programming Languages e Part 1 Notes to Text m Part4 Extensive Reading o Part 2 Word Study Part5 Notes to Passage s Part3 Practice on Text Part6 Practice on Passage

Chapter FourA The Internet Unit们 Part 1 Notes to Text Part4 Extensive Reading Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage

Chapter Four Measures For Computer Security Firewall Antispyware Antivirus Antispam Unit 18 Part 1 Notes to Text

Part 1 Notes to Text Part4 Extensive Reading Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage

Chapter Five Image Creation Unit 20 Part 1 Notes to Text Part4 Extensive Reading Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage

《传感器技术应用》课程电子教案（PPT教学课件）项目五 光电传感器 任务三 光电传感器在自动生产线上的应用

《传感器技术应用》课程电子教案（PPT教学课件）项目五 光电传感器 任务二 物料检测光电传感器应用