Which channel is designated for VHF Di

1、Which of the following is not a design

Which of the following is not a design feature of human language?（）AArbitrarinessBDisplacementCDualityDMeaningfulne

2、Channel 13 is primarily used for ship

Channel 13 is primarily used for ship to ship communication. Channel 13 is also authorized for（）.Acoast to aircraft operational communicationsBa...

3、Which command is required for connecti

Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational? （）A frame-relay arpB frame-relay mapC frame-relay interface-dlciD frame-relay lmi-type

4、Which extinguishing agent is best for

Which extinguishing agent is best for use on a magnesium fire?（）AWaterBSandCCO2DDry chemical

5、VHF Channel 6 is used exclusively for

VHF Channel 6 is used exclusively for what kind of communications?（）ARadio checks and time checksBInter-vessel safety and search and rescueCWorking with helicoptersDRadio direction finding

6、Which step is design

Which step is designed to prompt a user to press or say a single-digit number&#81...