In the passage, the author is trying to tell us ______.
A、howTVadsvaryvocalsoundstoattractattention;
B、howtheloudnessofTVadsisovercome;
C、howadvertiserscontrolthesoundpropertiesofTVads;
D、howtheattention-gettingpropertiesofsoundsaremadeuseofinTVads
发布时间：2025-08-11 05:01:31
