Question

已知集合A={x|∈R|x<5-|,B={1,2,3,4},则(A)∩B等于(　　)

A.{1,2,3,4}                            B.{2,3,4}

C.{3,4}                                D.{4}

 

Answer 1

【答案】

D

【解析】A={x∈R|x≥5-},而5-∈(3,4),∴(A)∩B={4}