以下代码执行后输出是？（ ）list0 = [5, 4, 3, 2, 2]list0.remove(2)list0.insert(2, 6)print(list0)
[5, 4, 3, 6, 2]
[5, 4, 3, 2, 6]
[5, 4, 3, 2, 6, 2]
[5, 4, 6, 3, 2]
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