单项选择题

Questions 23 to 25 are based on the conversation you have just heard.

A．They are friends.
B．They are counselor and client.
C．They are teacher and student.
D．They are colleagues.

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问答题

目前很多人报考研究生；2. 你认为此现象的原因是什么；3. 你的看法。

Questions 23 to 25 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。