TAILIEUCHUNG - Tiếng anh chuyên ngành viễn thông - bài tập

Exercise 1. Read the following passage then answer the questions. ANALOGUE AND DIGITAL NETWORKS Digital technology in the telephone network is nothing new. Take all the relays in older exchanges as an example. Relays are either "off" or "on", and there is no state in between these. Suitable combinations of relays could build up and "remember" numbers - perhaps a far-fetched example, but in was digital, so it will serve! What is new is the transfer of speech digitally. In other words, the sound we make when we speak is converted to digits and sent out on to the network | HỌC VIỆN CÔNG NGHỆ BƯU CHÍNH VIỄN THÔNG e CHƯƠNG TRÌNHPTIT ĐÀO TẠO ĐẠI HỌC TÙ XA BÀI TẬP TIẾNG ANH CHUYÊN NGÀNH ĐTVT Dùng cho sinh viên hệ đào tạo đại học từ xa Lưu hành nội bộ HÀ NỘI - 2006 BÀI TẬP TIẾNG ANH CHUYÊN NGÀNH ĐTVT Biên soạn THS. NGUYỄN QUỲNH GIAO THS. NGUYỄN HỒNG NGA UNIT 1 Exercise 1. Read the following passage then answer the questions. ANALOGUE AND DIGITAL NETWORKS Digital technology in the telephone network is nothing new. Take all the relays in older exchanges as an example. Relays are either off or on and there is no state in between these. Suitable combinations of relays could build up and remember numbers - perhaps a far-fetched example but in was digital so it will serve What is new is the transfer of speech digitally. In other words the sound we make when we speak is converted to digits and sent out on to the network. In order for the person called to understand what we are saying these numbers must be converted back to audible sound again. The audibility of speech transmitted in analogue form over long distances can be very bad. Due to for instance noise it may be difficult to understand or recognize what the other person is saying. But with a number things are different. It would need very bad handwriting indeed to distort a one beyond recognition So even if the one is distorted when it arrives it can still be interpreted and recreated to give undistorted sound in the receiver. In analogue lines the sound is amplified at regular intervals. The corresponding stage in digital lines is regeneration . the distorted number is interpreted and recreated. Herein lies an important difference between the characteristics of the two methods of transmission. In the analogue system the noise is also amplified. Every amplifying stage along the line leads to an accumulation of noise. In the digital system the information is created anew at every regeneration stage and can be sent on unaffected by the noise. A. Write True T or False F for each sentence.

• Kĩ thuật Viễn thông
• English majors
• english communication
• english materials
• telecom materials
• english majors
• telecommunications material
• information technology
• exercises english majors
• english study materials majors
• Graduate thesis in English Japanese
• Solutions to improve reading skill
• First year English majors students
• English majors students
• Classification of reading skills
• English captioned movies
• Listening skills
• Non English majors
• English class
• English captioned videos in English class
• English language graduation thesis
• English language
• First year English majors
• Daily conversation in English
• Speak in English with another person
• Tạp chí Khoa học
• Learning english listening comprehension
• Perceptions of non English majors
• Quy Nhon university
• Graduate thesis
• Graduate thesis in English Japanese language
• Learning Japanese kanji faced
• Graduation course
• Graduation course in English
• Facing first year English majors
• English speaking skill
• English speaking environment
• Presentation skills
• Fourth year English majors
• Eye contact
• Communicating predetermined messages
• Teacher centered teaching
• Listening skill
• Test taking strategy
• English majors participated
• Listening comprehension
• Khóa luận tốt nghiệp
• Khóa luận tốt nghiệp Ngôn ngữ Anh Anh
• English English language graduation thesis
• Learn specialized English vocabulary
• Improve specialized English vocabulary
• Third year Logistics majors students
• Graduation course of English language sector
• English language sector
• How to improve listening skills for second year
• English majors at HPU
• English teaching methodology
• Improving students’ listening competence
• English learning and teaching
• English pronunciation
• Practical English language teaching
• Learning strategies
• English Japanese graduation thesis
• English Japanese
• Communication of the 1ST English majors
• English speaking
• Suggestions for better communication
• travel english
• english for tourism
• common English
• English grammar
• English grammar review
• documentation English grammar
• Difficulties in reading skill experienced
• Firstyear English majors at Haiphong Private University and some suggested solutions
• Haiphong Private University
• Speaking skill
• Speaking problems when speaking English
• Faced by the second English majors
• English homonyms
• Data collection including reflective journal
• English homophones
• Learn languages
• Fix English mistakes
• Khóa luận tốt nghiệp Ngôn ngữ Anh Nhật
• English Japanses language graduation thesis
• English majors’ reading skills
• English major sophomores
• Learning and teaching English
• Negative transfer
• Topic comment structures
• English learners’ translation
• Funtional grammar
• Self study
• Learning English
• International language
• Help first year English majors
• Speaking lessons
• Common mistakes in speaking lessons
• Vocabulary learning strategies employed
• Language learning strategies
• Nghiên cứu khoa học
• Báo cáo nghiên cứu khoa học
• The second year English majors
• Translating Vietnamese texts into English
• Errors on verb tenses
• Productive skills
• Saigon university