第一节 D/A转换器 第二节 A/D 转换器

Section A The Temptation of a Respectavle Woman Section B The Obligations and Responsibilitise to marriage Section C The Positive Meanings of Love

Section A The Bermuda Triangle phenomenon Section B The Ride of My Life Section C Easy Ride in a Taxi

Section A Premarital Agreements Section B Is the Traditional Family Structure at Risk? Section C A Male Nanny

10-1选择题 1.AD 2.A 3.A 4. ABCD 5. ABCD 6.AD

Section A The Expensive Fantasy of Lord Williams Section B The Romantic Life of Secret Agent Albert Section C For the Want of a Telephone Call

1 Software and Software Engineering 2 Process Models 3 Agility and Process 4 Recommended Process Model 5 Human Aspects of Software Engineering 6 Principles That Guide Practice 7 Understanding Requirements 8 Requirements Modeling—A Recommended Approach 9 Design Concepts 10 Architectural Design—A Recommended Approach 11 Component-Level Design 12 User Experience Design 13 Design for Mobility 14 Pattern-Based Design 15 Quality Concepts 16 Reviews—A Recommended Approach 17 Software Quality Assurance 18 Software Security Engineering 19 Software Testing—Component Level 20 Software Testing—Integration Level 21 Software Testing—Specialized Testing for Mobility 22 Software Configuration Management 23 Software Metrics and Analytics 24 Project Management Concepts 25 Creating a Viable Software Plan 26 Risk Management 27 A Strategy for Software Support 28 Software Process Improvement 29 Emerging Trends in Software Engineering 30 Concluding Comments

New Words dedicate:give, devote(one's time, energy, life, etc. to a noble cause or purpose If you dedicate yourself to something you decide to give a lot of time and effort to it because you think it is important

《森林生态学》课程教学资源（书籍文献）Principles of Terrestrial Ecosystem Ecology，PDF电子书（F. Stuart Chapin III Pamela A. Matson Harold A. Mooney）

数字通信系统具有许多优点。然而许多信源输出都是模拟信号。 若要利用数字通信系统传输模拟信号,一般需三个步骤: (1)把模拟信号数字化,即模数转换(A/D); (2)进行数字方式传输; (3)把数字信号还原为模拟信号,即数模转换(D/A) 由于A/D或D/A变换的过程通常由信源编(译)码器实现,所以我们把发端 的A/D变换称为信源编码,而收端的D/A变换称为信源译码,如语音信号的数字 化叫做语音编码