t thay cac ban ai cug than vannhug t thay de thi toan lan nay de~ ko chju dc!
bai 1 t vua doc qua thay minh gioi the nay lam kai bai nay that la mat si dien.no qua de so voi kha nag to' qua nen ko them lam
bai 2 thi thoy.nhjn phat biet cah lam ngay.sau khi lam xog bai 2 trong giay nhap to' thay no' dai2.to' lai ngi chep bai nay vao chac thay co doc xong lai phuc minh qua(vi lam qua day du va chinh xac den tung nanomet) nen chap bai 2.
bai 3 lai la bai to' thay kho nhat va day thach thuc vs t nhat.
sau 5s ngoi hj huc nghj di nghj lai, nghj ra nghj vao t moi nghj dc cak lam.va bag no luc het suc, =kien thuc 1 hoc ki t da nam vung t quyet dinh lam.sau 5 minute lam to' chot nghj la bai kho' the nay chac diem thap nen to ngoi ngi 1 chut de xem co bai nao` nua~ lam ko?
ngoi ngj ti thi thay time out.
the thi thoy.cac thay co ko cho lam nua~>>>>>>>nop bai thoy
ec ec.noi chung la kai de nay nam trong tam tay cua t.(nam ngoai tam kien thuc.ac ac).mun may diem cug dc.hehe
hen ban nao co cug tu tuong lon nhu t he` den thj lai vs t hey