GMDSS 英语阅读单选题 1. IMO has decided that all ships over 300TGt must be fitted with a NAVTEX receiver ______ . A. by 01 Feb 1992 B. by 01 Aug 1993 C. between 01 Feb 1992 and 01 Feb 1999 D. before 01 Feb 1992 B
I单项选择 1.抽样频率 a. sampling rate b. repetition rate c. sampling frequency 答案:c 2.数字通信 a. digital communication b. digital transmission. transmission path 答案:a
1. to know The Integrated Services Digital NetworkTeachi 2. to understand the construction of The Integrated Services Digital NetworkObjectives 3. to master some important new words and passive voiceFocal
1. to know the origin, operation and disadvantages of asynchronous serial data transmissioneaching 2. to understand the main idea and organization of the tex Objective