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【单选题】
听力原文：M: What are you looking for, Alice? W: I'm looking for my pen, Mike. I can't see my pen. M: It's here, on the desk. W: I'm sorry. But I'm getting so nearsighted. I'm afraid I have to wear glasses. M: Your eyesight used to be very good, why? W: Recently I have formed the habit of reading in bed. Sometimes I read on the moving bus. M: Alice, you should pay attention to the care of your eyes. You should get rid of the bad reading habit. What's more, you should relax your eyes as often as possible. W: Thank you, Mike. What is the possible relationship 'between the two speakers?A.
Classmates.
B.
Doctor and patient.
C.
Teacher and student.
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A.
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B.
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C.
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D.
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E.
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