/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: kietcaumuoikcm https://public.slidesharecdn.com/v2/images/profile-picture.png Kh担ng hi棚n ngang nh動ng v畛�ng v��ng c湛ng tr畛�i ��畉�t V畉�n n畛� c動畛�i ng畉�o ngh畛� gi畛�a kh担ng gian