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: 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.
B
举一反三
- 智慧职教: How are paired NBDP frequencies normally used?
- 170. Frequencies specified for MSI should be used by A: authorized coast stations to broadcast MSI B: a ship station to report MSI to a public coast station C: a ship station to transmit distress alert D: authorized coast stations to transmit distress acknowledgement
- 143. Details of Coast Radio Station and Radar Stations and Read Stations can found in （ ）
- Memos are normally used for sensitive communication.
- “ 草芥 ” is normally used as a metaphor for something that is worth mentioning.
内容
- 0
Flip-flops are normally used for all of the following applications, except ________._
- 1
Memos are normally used for sensitive communication. A: 正确 B: 错误
- 2
中国大学MOOC: Memos are normally used for sensitive communication.
- 3
66. DSC distress alert should direct to（ ）ln vicinity。 A: all stations B: coast stations C: ship stations nearby D: group of specified stations
- 4
The idiom ______ is normally used to describe a person’s clear and energetic looks.