单选题All Loran-C transmitting stations are equipped with cesium frequency standards which permit （）.Aevery station in one chain to transmit at the same timeBeach station to transmit without reference to another stationCon-line transmission of single-line transmitters at the same timeDeach station to only depend on the master for synchronization and signal ratio
单选题
All Loran-C transmitting stations are equipped with cesium frequency standards which permit （）.
A
every station in one chain to transmit at the same time
B
each station to transmit without reference to another station
C
on-line transmission of single-line transmitters at the same time
D
each station to only depend on the master for synchronization and signal ratio
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