/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: drlonguyen https://cdn.slidesharecdn.com/profile-photo-drlonguyen-48x48.jpg?cb=1539445925 hi! every body ��動畛�ng t動董ng lai c嘆n nhi畛�u gian kh畛�, ��畛�ng n畉�n l嘆ng quy畉�t ch鱈 畉�t v動畛�t qua