要低 he xin qi kan cha zhong lv yao di yu duo shao
核心重复 he xin qi kan zhong fu lv bu gao yu duo shao
低于 lun wen qi kan cha zhong xu yao di yu duo shao
要低 qi kan cha zhong xiang si du yao di yu duo shao
查重率 qi kan de cha zhong lv bu neng gao yu duo shao