chao cac bac, em la new member, o day bac nao co so do nguyen li cua chuong dien bao gio hoc thi cho em voi, lap trinh cho 8051, co 2 che do bao theo mua: mua he do chuong vao luc 7AM, 9AM,9h15AM, 10h15AMva 11h15AM, 1PM,3PM, 3h15PM, 4h15PM, 5h15PM. Con mua dong thi delay 15ph so voi mua he
Mong cac bac chi giao them,
phamduyqb@gmail.com