美股盘初，主要行业ETF普跌，半导体ETF跌逾2%，网络股、科技股、科技行业、航空业ETF跌逾1%。

美股盘初，主要行业ETF普跌，半导体ETF跌逾2%，网络股、科技股、科技行业、航空业ETF跌逾1%。

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