某Python程序段如下:
lis=[11,22,33,44,55] lis[2],lis[3]=lis[3],lis[2] print(lis)
程序运行后,输出的结果是?( )
[11,22,33,44,55]
[11,22,22,33,55]
[11,22,44,33,55]
[11,33,33,44,55]