/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: nguyentuyet731135 https://public.slidesharecdn.com/v2/images/profile-picture.png My name is Nguyen Tuyet. I teach History at Ly Thai To Hight School. It 's one of the biggest school in Bac Ninh provice.