You are able to Look at a waveform of one period which has a waveform of another period or Look at using a Beforehand calculated waveform on exactly the same check level. Page sixty nine: ConversationCông ty x? s? ki?n thi?t Sóc Tr?ng ?ã trao 5 t? ??ng làm qu? khuy?n h?c L??ng ??nh C?a cho các h?c sinh v??t khó h?c gi?i.Be the 1st to review t