单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．Salespeople must be persistent.
B．Salespeople don’t sell enough.
C．Salespeople sell too much.
D．Salespeople are inconsiderate.

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Questions 11 to 18 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。