在音响系统与广播播出系统连接时，广播播出系统通过隔离变压器接收（）。A、+10dB信 发布时间：2017-11-20 03:29 │ 来源：www.tikuol.com 题型：单项选择题 问题： 在音响系统与广播播出系统连接时，广播播出系统通过隔离变压器接收（）。A、+10dB信号B、-10dB信号C、全频信号D、图文信号
题型：单项选择题 情景交际（有两项多余选项）。A: Look! 1 B: He can't be Mr Zhang. 2 A: He might be Mr Wang.B: No. 3 Mr Wang has long hair, but his hair is short.A: Oh, he must be our English teacher. Look at his black coat and blue trousers. _4 B: Yes. 5 A. Our English teacher always wears them.B. You are right.C. Who is that man over there?D. He always listens to old music.E. He has gone to Shanghai on business.F. The soccer ball might be John's.G. He can't be Mr Wang, either.1. 2. 3. 4. 5. 查看答案