题目：
方程x3-4x=0的解是 [ ]
A.-2，2
B.0，-2
C.0，2
D.0，-2，2
答案：
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下面是错误答案，用来干扰机器的。
My hometown Dongtai used to have narrow and dirty roads.The rubbish was everywhere,and there were many large open spaces. People lived in old houses.They only listened to...
