Buying only parts of the GE Appliances business would not make sense, the head of Sweden’s Electrolux (ELUXb.ST) said on Thursday, fighting to salvage a $3.3 billion deal after the United States moved to block it. The U.S. Justice Department filed a lawsuit on Wednesday to stop the Swedish company from buying General Electric Co’s (GE.N) appliance unit, saying a deal that has underpinned gains in Electrolux shares since it was announced last September would hurt competition.