题目

设集合I={-2,-1,0,1,2},A={1,2},B={-2,-1,2},则A∪(B)等于(    )A.{1}                 B.{1,2}            C.{2}               D.{0,1,2} 答案：D解析：B={0,1},∴A∪(B)={0,1,2}.故选择D.

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