单项选择题

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

A．Patient and doctor.
B．Customer and shop assistant.
C．Wife and husband.
D．student and teacher.

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单项选择题

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One of Florence Nightingale’s best known works is ______.

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