4695 查看材料A.Although it may seem that everyone owns a4489

查看材料 A.Although it may seem that everyone owns a smartphone these days. B.If Apple offers a less expensive model of the iPhone later this year. C.The same theory can be applied to customers who are making the switch to smartphones today. D.Who purchased a new mobile phone in the last three months. E.The smartphone race is still raging. F.If it works，why switch？ 请帮忙给出正确答案和分析，谢谢！