You could Evaluate a waveform of 1 period using a waveform of An additional stage or Evaluate by using a previously measured waveform on the exact same examination place. Webpage 69: ConversationTh? thao Arsenal b?t ng? h??ng l?i th? l?n tr??c Bayern ? t? k?t Cúp C1 Arsenal c?a Mikel Arteta h??ng l?i th? b?t ng? ? l??t ?i t? k?t Champions League,