财联社3月14日电，美股三大指数集体高开，道指涨0.6%，标普500指数涨0.77%，纳指涨1.27%。量子计算概念走高，D-Wave Quantum涨超11%，昆腾涨逾10%，Quantum Computing涨超9%，IonQ Inc涨逾6%。
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