huhuhuh. chia bun cho tui voi . de kiem tra khao sat toan phai noi la cucucucuc ki de . ma chang chu y ngo ngang j den no khien bay j sai bet het thay rui . ca van nua chu , luc hoc thi mot kieu luc lam bai thi lam kieu ay lai sai bet . tuc wa troi
bi khoa nik nen jo phai lay nik nay thui zay . sang nay kiem tra khao sat chat luong mon toan rui nhug minh cha mun on va cung chang pjet on phan nao nua
uPj ca nha
Tui phai oiut thui
chan wa
///............................................................................................................................