题目内容

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A. The man and the woman will not eat out.
B. The man and the woman will go Dutch.
C. The man will pay for the dinner.
D. The woman will pay for the dinner.

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根据录音,选择合适的答案() 查看材料

A. It has a small size.
B. It will fire some employees.
C. It will give him a promotion.
D. It is an overseas company.

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A. It is very interesting.
B. It is very easy.
C. It is very boring.
D. It is very difficult.

根据录音,选择合适的答案() 查看材料

A. The Italian restaurant.
B. The Indian restaurant.
C. The Chinese restaurant.
D. The Thai restaurant.

蛋白质的二级结构(secondary struture)

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