Which of the following is not the possible transmission routes of COVID-19? A: Droplet transmission. B: Contact transmission. C: Arthropod-borne transmission. D: Human-to-human transmission. E: Ocular surface transmission.

中国大学MOOC: Digital transmission does not need to have _________ S/N ratio (信噪比) as analog (模拟) transmission.

11). I can't drive her car because it has a manual transmission instead of an ______ transmission. (automate, automation, automatic, automatically)

Analog signals may cause distortion such as graininess or snow in the case of video transmission and static or other background distortion in the case of audio transmission.

It is designed ( ) voice transmission. A: to B: by C: on D: for

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

()is<br/>known as a semi-automatic transmission. A: AMT B: CVT C: DSG

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