挑战习题
1/3单选题
难度:

1.下列各组集合M与N中,表示相等的集合是(  )
A M={(0,1)},N={0,1}
B M={(0,1)},N={(1,0)}
C M={(0,1)},N={(x,y)|x=0且y=1}
D M={π},N={3.14}
提示1:
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正确答案:Qw==
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