以下程序运行后输出的是 ['北京', 'Alabama', '上海', 'Alaska', 'Arizona', 'Arkansas']
A.
world_city=['北京','Alabama','Alaska','Arizona','Arkansas'] world_city.insert(2, '上海') print(world_city)
B.
world_city=['北京','Alabama','Alaska','Arizona','Arkansas'] world_city.insert(1, '上海') print(world_city)
C.
world_city=['北京','Alabama','Alaska','Arizona','Arkansas'] world_city.insert(-1, '上海') print(world_city)
D.
world_city=['北京','Alabama','Alaska','Arizona','Arkansas'] world_city.insert(-4, '上海') print(world_city)