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]