Bell Labs, Lucent Technologies, Crawford Hill Lab, Holmdel, NJ 07733, USA: herwig@lucent.com Abstract Optical communication has advanced into the tera-era deploying 1/2 terameter of fiber and carrying several Tb/s per fiber. Remaining challenges include extending the success of point-to-point long-haul to metropolitan networks and broadband access applications. Introduction Reflecting on the past 15 years of optical communication, one can only marvel at the amazing advances in this technology and in its applications

Unit 7 The Fundamentals of computer Software Text 1 Data Structure A data structure is a data type. Its values are composed of component elements that are related by some structure Since a data structure is a data type, it has a set of operations on its values. In addition, there

Unit 2 More about Computer Text 1 Guess What It is Let's begin this unit with a riddle. Try to guess what it is? It is like a tv. but it is not It is a calculator but it is more than a calculator It is not so mysterious, but it is powerful and intelligent When you want to send or receive e-mail

1. 了解操作系统是如何实现资源分配和用户接口功能的。 2. 通过学习操作系统功能的演化，认识操作系统在实现过程中采用的基本概念与技术，了解操作系统设计中的概念。 3. 认识操作系统的结构，了解当前常见操作系统的特点 4. 掌握被动语态的翻译技巧

一、掌握软件的生命周期的基本术语与知识; 二、了解软件工程的发展趋势; 三、了解软件设计方法; 四、了解软件安全的有关知识; 五、掌握复杂定语(从句)的翻译技巧

Chapter 9 The World Wide Web Requirements: 1、理解万维网(World Wide Web)的工作原理; 2、能够描述 Internet和万维网的特征及其服务; 3、了解学术论文写作的有关知识

Chapter 6 Software Engineering Requirements: 1、掌握软件的生命周期的基本术语与知识; 2、了解软件工程的发展趋势; 3、了解软件设计方法; 4、了解软件安全的有关知识; 5、掌握复杂定语(从句)的翻译技巧

国家开放大学：2016年春季学期“开放本科”商务英语专业高级商务英语听说期末试题（7月）

国家开放大学：2013—2014学年第二学期“开放本科”商务英语专业高级商务英语听说期末试题（7月）

国家开放大学：2013—2014学年第二学期“开放本科”商务英语专业高级商务英语阅读期末试题（7月）