It is possible to compare a waveform of 1 section using a waveform of A further section or Look at by using a Earlier calculated waveform on the same check stage. Page 69: Communication(Nh?n ??nh, d? ?oán Th?y ?i?n vs Albania) – Th?y ?i?n sau th?t b?i t?i h? tr??c B? ?ào Nha s? tr? v? sân nhà g?p Albania trong tr?n giao h?u.La Liga s? h?u nh?