关键词：投资策略,股票市场,公用事业精选行业 SPDR 基金,PG&E Corp,Nextera Energy Inc,NRG Energy Inc,Southwest Gas Corp,商业新闻
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关键词：投资策略,股票市场,公用事业精选行业 SPDR 基金,PG&E Corp,Nextera Energy Inc,NRG Energy Inc,Southwest Gas Corp,商业新闻