题目

满足{0,1,2}真包含于A包含于{0,1,2,3,4,5}的集合A的个数为

提问时间：2020-11-30

答案

7个,{0,1,2,3}{0,1,2,4}{0,1,2,5}{0,1,2,3,4}{0,1,2,3,5}{0,1,2,4,5}{0,1,2,3,4,5}