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When the price of NBA tickets is $25 each, 30,000 tickets are sold. After the price rises to $30 each, 20,000 tickets are sold. At the original price, the demand for NBA ticket is:

When the price of NBA tickets is $25 each, 30,000 tickets are sold. After the price rises to $30 each, 20,000 tickets are sold. At the original price, the demand for NBA ticket is:
A.unit elastic.
B.inelastic.
C.perfectly elastic.
D.elastic.
正确答案：elastic.

标签：微观经济学中国大学MOOC微观经济学

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