66. DSC distress alert should direct to（ ）ln vicinity。 A: all stations B: coast stations C: ship stations nearby D: group of specified stations

Public television stations are different form commercial stations _____.

Combine the following pairs of sentences after the models, using the phrase “except for”.Model 1: There are only two new gas stations in the town. The town has changed relatively little in recent years.Key: The town has changed relatively little in recent years except for two new gas stations.Now, combine the following sentences.1. Your article is very good. There are some mistakes in grammar.

143. Details of Coast Radio Station and Radar Stations and Read Stations can found in （ ）

Which stations are mentioned in the video clip?

The chief reason for building space stations was to ______.

（ ）are utilized to relay Enhanced Group Calls A: COSPAS satellites. B: HF SITOR shore stations C: NAVTEX shore stations D: Inmarsat satellites.

What should be made known in the lists of coast and ship stations? A: the services of the stations open to public correspondence B: the information on charging C: what kind of the public correspondence D: A and B

Many power stations have been modernized to less pollution.

stations to pass on signals是蜂窝式无线电通讯系统的