cac ban hoc chua hieu bai sao khong dat cau hoi de Phong vâcc ban khac giai dap giup cho
can phai doc bai ,suy nghi , thac mac va dat cau hoi ve nhung gi minh chua hieu , roi di tim cau tra loi chu
co thac mac la lop minh cu keu la hoc do, vay taíao khong hoi bai ban Phong va cac ban hoc kha hon vay ta?
gio ra choi dung dua gion , choc pha nhau ma danh thoi gian trao doi hoc tap thi tot hon .
sang lop 12 ,cac banchi hoc kien thuc den het hoc ky 1 thoi ,hoc ky hai chuyeu la on tap de di thi thoi . den luc nay tam ly cang thang va lo so lam , hoc cung khong duoc nhieu nua dau ,
thu lam pheptinh xem sao , dau con bao nhieu lau de bu dap nhung cho minh bi hong do !