单选题One method of reducing the length of radio transmissions without distorting the meaning of your words is by using（）.AslangBsecret codesCprocedure wordsDanalogies
单选题
One method of reducing the length of radio transmissions without distorting the meaning of your words is by using（）.
A
slang
B
secret codes
C
procedure words
D
analogies
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