必和必拓将增加镍矿勘探支出以应对电动汽车热潮

array(1) { [421408]=> array(2) { [2]=> array(4) { [0]=> string(15) "新能源汽车" [1]=> string(6) "镍矿" [2]=> string(15) "新能源整车" [3]=> string(12) "必和必拓" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }