问题描述: 满足{3,4}⊆M⊆{0,1,2,3,4}的所有集合M有______个. 1个回答 分类:数学 2014-11-15 问题解答: 我来补答 所有的集合M有:{3,4},{3,4,0},{3,4,1},{3,4,2},{3,4,0,1},{3,4,0,2},{3,4,1,2},{3,4,0,1,2}.共8个.故答案为8. 展开全文阅读