中文摘要：

设L是一个有限非交换单群.若有限群G满足：L≤G≤Aut（L）,则称G是相关于L的几乎单群.特别地,若L是一个散在单群,则称G是相关于L的几乎散在单群.该文证明了所有几乎散在单群可被其阶和不多于两个特殊共轭类长唯一确定.

英文摘要：

A finite group G is said to be an almost simple related to L if and only if L 〈 G 〈Aut（L） for some simple group L. Further, if L is a sporadic simple group, then say that G is an almost sporadic simple group related to L. In this paper, we prove that all almost sporadic simple groups can be determined uniquely by their orders and no more than two special conjugacy class lengths.