【单选题】{{B}}Questions 1 to 5 are based on the following conversation.{{/B}}
A、
A、Automatic gas fill-ups.
B、
A、touchtone phone system.
C、Automatic cashier.
D、Computer software.
网考网参考答案:A
网考网解析:
[听力原文]
Which new invention mentioned in the conversation has increasingly isolated people from informal day-to-day contacts
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