/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: MinCon https://public.slidesharecdn.com/v2/images/profile-picture.png N畉�u m畛�t ng��y n��o ��坦 t担i tr畛� n棚n x畉�u xa v�� tr畛� th��nh m畛�t t畛�i ph畉�m nguy hi畛�m th狸 sao ��但y? ��i畛�u ��坦 s畉� kh担ng x畉�y ra n畉�u "h畉�n" v畉�n b畛� r董i t担i v�� m畉�i t狸m ki畉�m nh畛�ng 畉�o 畉�nh c畛�a t畛� nhi棚n.