问题
单项选择题
The frequency 156.525MHZ and 156.8MHZ should be used in the band of（）.
A.MF
B.VHF
C.HF
D.LF
答案
参考答案：B
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The frequency 156.525MHZ and 156.8MHZ should be used in the band of（）.
A.MF
B.VHF
C.HF
D.LF
参考答案：B