题海让大学四年没有难题
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单选题 Section BQuestions 8 to 11 are based on the conversation you have just heard.<iframe src="/module/audioplay.html?objectid=b5d55fcf4c9c7ae98fb8b7eeaae0ce61"></iframe>8

A. Colleagues

B. Instructor and student

C. Neighbors

D. Anchor and guest

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