单选题 1分

To establish a communication channel for the telex service in the INMARSAT A terminal, you should fi...

To establish a communication channel for the telex service in the INMARSAT A terminal, you should first ______.
  • A. establish a communication channel from the CES, via the International Telex Network to the final destination
  • B. set up a communication channel from your SES, via a satellite, to a CES within your ocean region
  • C. set up a channel directly to the addressee at the destination
  • D. establish a channel from your terminal, via the International Telex Network to a CES within your ocean region

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