    Sentence 1: .The _ technology~  heavy..Nasdaq:‘Composite Index  gained. 25,75: points”... or 1.5  ‘percent .,.-t0 1,746.46 , “its  highest: close “in. about; 15.  months . a    Senteries-2: The technology -  laced..Nasdaq.Composite. Index  ~IXIC was -down: 1.55 points ¢ ;.  sor’ 0209 percent:, .at 1,744.91.