x? s? tr?c ti?p mi?n b?c th? t? hàng tu?nSau ??i h?i 20 ??ng C?ng s?n Trung Qu?c, ?i?m d?ng chân ??u tiên c?a T?ng Bí th? T?p C?n Bình khi r?i B?c Kinh ?i th? sát là thành ph? Diên An, t?nh Thi?m Tây.Theory: Readings clearly show the efficient voltage based upon the typical value of samples above a whole quantity of intervals of the basic