15日，美国三大股指收盘分化，道指上涨超过270点，标普500指数连续第四日收高。截至收盘，道指涨0.65%报42322.75点，标普500指数涨0.41%报5916.93点，纳指跌0.18%报19112.32点。美股大型科技股多数下跌，亚马逊跌逾2%，脸书跌逾2%，特斯拉跌逾1%，谷歌跌0.85%，苹果跌0.41%，英伟达跌0.38%，微软涨0.23%。中概股普遍下跌，纳斯达克中国金龙指数跌...
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