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【简答题】
假定某消费者的需求价格弹性EP=1.3,需求收入弹性EM=2.2。求: (1) 在其他条件不变的情况下,商品价格下降2%对需求数量的影响; (2) 在其他条件不变的情况下,消费者收入提高5%对需求数量的影响
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【单选题】听力原文：W: I hear that your sister Catherine was a great student. M: She is. She hasn't graduated yet. Q: What does the man think of Catherine? (16)
A.
She has finished her school.
B.
She is not a good student before.
C.
She hasn't finished her final paper.
D.
She's still a student.
【单选题】听力原文：W: I hear that your sister Catherine was a great student. M: She is. She hasn't graduated yet. Q: What does the man think of Catherine? (16)
A.
She has finished her school.
B.
She hasn't finished her final paper.
C.
She is not a good student before.
D.
She's still a student.
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