If the transmission rate of a channel is 3000 baud and 8-level transmission is adopted, the transmission rate is ______ b/s.

穿透法through transmission technique；transmission technique

The signal transmission portion of the analog video surveillance system is responsible for the upstream transmission of the video signal and the downstream transmission of the control signal. ( ) A: 正确 B: 错误

SARS-CoV is primarily transmitted by A: Respiratory transmission B: Sexual activity C: Fecal-oral route D: Insect transmission E: Vertical transmission from mother to child

In order to reduce the influence of transmission elements on<br/>transmission accuracy, () transmission should be adopted. A: Deceleration B: Isokinetic C: variable speed D: Speed up

The transmission parameters and reverse transmission parameters of the two-port network are inverse matrices of each other.

(10 points) In order to reduce the influence of transmission elements on transmission accuracy, () transmission should be adopted. A: speed up B: deceleration C: isokinetic D: variable speed

automatic transmission (AT)______

Manual transmission

translate chinese into english1. 数字通信 A: digital communication B: digital transmission C: transmission path