美股三大指数开盘涨跌不一，道指跌0.69%，纳指涨0.38%，标普500指数涨0.19%。特斯拉跌超7%，此前马斯克称公司接下来可能面临几个艰难的季度。IBM跌超9%，此前公布的第二季软件营收低于预期。(中新经纬APP)
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