@teppi_izumi k phai la cach xung ho lon xon ma minh co tinh de nhu vay. Khi chi co 2nguoi, ND va Ai se xung la ta nang, toi anh. Khi co mat nhung ng khac thi ho k the goi nhau nhu the dc. Truong hop cua AT va Ai cung vay. Cam on ban da gop y. Minh se ra soat va sua lai nhung cho thay can thiet...