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Warning: Array to string conversion in /www/wwwroot/iqti.cn/wp-content/plugins/wpjam-basic/components/wpjam-basic.php on line 174 一天夜里狂起了狂风,这时一个桌子上总共有12支点燃的蜡烛,先被风吹灭了3根,不久又一阵风吹灭了2根,最后桌子上还剩几根蜡烛?-IQ题