美股开盘，道指跌0.47%，标普500指数跌1.2%，纳指跌1.92%。美国针对H20芯片出口设置障碍，芯片股集体低开，超微半导体跌超7%，英伟达跌超6%，阿斯麦跌超5%。国际金价续创新高，黄金股集体大涨，哈莫尼黄金涨超7%，金田涨超6%。 海量资讯、精准解读，尽在新浪财经APP
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