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听力原文：M: I'm sorry to have kept you waiting for such a long time. I didn't think the meeting would be so long. W: That's all right, Dr. Green. I've got the data you required and a few reference books which I think may be useful to your representation at the conference. Q: What's the purpose of the woman's visit to the man? (15)A.
To help him prepare for the conference.
B.
To tell him something about the conference.
C.
To see if he is ready for the coming conference.
D.
To remind him of the data he should take to the conference.
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【单选题】The buses, _______ were full of people, couldn’t go very fast.
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