The radio communications with the ship stopped completely.
举一反三
- 13. How are paired NBDP frequencies normally used? . A: These are normally used for FEC conunurucations with coast radio stations. B: These are normally used for ARQ communications with coast radio stations. C: These are normally used only for distress communications to limit channel interference. D: These are normally used for DSC communications with coast radio stations.
- A funny thing happened on the way to the communications revolution: we stopped __________ (talk) to one another.
- How long will the communications last? Communications will continue until ______ has been completed.
- Questions 8 to 11 are based on the conversation you have just heard. 9题选（）. A: It is the most modern production line B: It assembles super-intelligent robots C: It has stopped working completely D: It is going to be upgraded soon
- When you call a friend in Puerto Rico, the radio waves from your cell phone first travel to ________. A: a cell tower near me B: a cell tower in Puerto Rico C: my friend’s cell phone D: a communications satellite