标普：下调推特评级至“B-”

array(1) { [452521]=> array(2) { [2]=> array(3) { [0]=> string(7) "Twitter" [1]=> string(12) "外围股指" [2]=> string(9) "标普500" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }