题目内容

已知集合A={a,0,-1},B={c+b,1},且AB,则abc的值分别是

A.1,-2,2                                                               B.-2,1,2

C.2,1,-2                                                               D.1,2,-2

解析:∵AB,∴a=1.又≠0,∴=-1且c+b=0.解得b=-2,c=2.

答案:A

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