________（47）A.Although it may seem that everyone
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________（47）
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.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?