/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: thotranvan50 https://cdn.slidesharecdn.com/profile-photo-thotranvan50-48x48.jpg?cb=1523373835 L�� gi畉�ng vi棚n tr動畛�ng ��畉�i h畛�c x但y d畛�ng, ��am m棚 c担ng ngh畛� th担ng tin.