Question

已知m的集合满足：{2,3}含于m含于{1,2,3,4,5},求m得集合

Answer 1

{2,3}含于m说明m中肯定有2和3啦

m含于{1,2,3,4,5}说明m中不会有1-5之外的数啦

那m可以是{2,3}

{1,2,3} {2,3,4} {2,3,5}

{1,2,3,4} {1,2,3,5} {2,3,4,5}

{1,2,3,4,5}