单项选择题

Questions 50-52 refer to the following conversation. Where do the man and woman probably work

A. In a library
B. In an investment firm
C. At a research institute
D. At a university

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单项选择题

单项选择题

Questions 50-52 refer to the following conversation. Where do the man and woman probably work 您的浏览器不支持 audio 元素。