单项选择题

Questions 23 to 25 are based on the conversation you have just heard.

A. ￡5.
B. ￡30.
C. ￡25.
D. ￡55.
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单项选择题
The example of brushing teeth shows that some of consumer’s habits are developed due to （）

A. perfected art of products
B. automatic behavior creation
C. commercial promotions
D. scientific experiments
单项选择题
63（）

A. attract
B. contact
C. enlarge
D. extend
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