Question

已知_ZA={x∈Z|x＜6},_ZB={x∈Z|x≤2}，则A与B的关系是

A.AB                                                          B.AB

C.A=B                                                            D._ZA_ZB

Answer 1

解析：∵_ZA={x∈Z|x＜6},∴A={x|x≥6,且x∈Z},同理B={x|x≥3，且x∈Z},∴AB.

答案：A