美股大型科技股、芯片股拉升，纳指涨幅达2%

array(1) { [381433]=> array(2) { [2]=> array(5) { [0]=> string(9) "科技股" [1]=> string(12) "外围股指" [2]=> string(18) "纳斯达克指数" [3]=> string(12) "芯片概念" [4]=> string(9) "芯片股" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }