单选题
The writer expects that by 2010 new technology will have revolutionized communications and ______.
A、
bookshops will not exist
B、
the present postal system will have disappeared
C、
people will no longer send letters
D、
the postmen will have been replaced by the motor cars.
【正确答案】
B
【答案解析】
[分析] 本题的落点在第一段的第四、五句。句中提到：人们将用电话线而不用邮政传递信息，邮差将消失。
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