1404. cost n.值,价值,成本 147. hardly ad.几乎不,未必 1405. degrade v.降低,减少,递降 1448. placement n.布局 1406. suggestion D.暗示,提醒 1449. think 考虑,以为,判断

Chapter 12 Multimedia Key points: useful terms and definitions of Multimedia Difficult points: Applications of multimedia

Chapter 14 Virtual Reality Key points: useful terms and definitions of Virtual Reality Difficult points: applications and features of VRML

Chapter 2 Organization of Computers Key points: useful terms and organization of computers Difficult points: describing the organization of computers

Chapter 4 Data Structure Key points: useful terms and definitions of data structure Difficult points: Stack, queue, tree

Chapter Operating System Key points: Function and structure of Operating System Difficult points: Resource allocation and related functions User interface functions

Chapter 7 Programming Languages Key points: useful terms and definitions of programming languages Difficult points: describing the differences between compilers and interpreters

Chapter 3 Number Systems and Boolean Algebra Key points: useful terms and definitions of Number system and Boolean Algbra Difficult points: Conversion of the Number Systems and Boolean Algbra

1. Concept of virtual reality 2. Applications of VRML 3. Describe the features of VRML 4. 了解广告文体的特点

1. Three reasons for using data structures are efficiency, abstraction, and reusability. 2. The properties of Stack, Queue, and Tree 3. 掌握常用英汉互译技巧