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【多选题】
下列命题中不正确的10与{0}表示同一个集合;2由1,2,3组成的集合可表示为{1,2,3}或{3,2,1};3方程(x-1)2(x-2)=0的所有解的集合可表示为{1,1,2};4集合{x|4
A.
只有①和④
B.
只有②和③
C.
只有②
D.
以上语句都不对
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