Amplitude modulation wave is （ ）
A、theamplitudeofcarriersignalvarieswiththefrequencyofthemessagesignal
B、theamplitudeofcarriersignalvarieswiththeamplitudeofthemessagesignal
C、thefrequencyofcarriersignalvarieswiththeamplitudeofthemessagesignal
D、theamplitudeofcarriersignalvarieswiththephaseofthemessagesignal
发布时间：2025-06-24 13:18:45
