What is the most famous football game each year？
A. the Georgia-Florida game.
B. the Super Bowl.
C. the Alabama-Auburn game.
D. the Army-Navy game.
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What position did Thurgood Marshall retire from？
A. Solicitor General.
B. Attorney for the NAACP.
C. Justice of the Supreme Court.
D. Court secretary.
一级价格歧视和二级价格歧视在一定的条件下能达到完全竞争市场的社会总福利水平，三级价格歧视则不能增进社会总福利。()
A. 正确
B. 错误
From the story, we know that Jon is ______.
A. a poor pupil in school
B. always doing what he likes
C. very creative in his study
D. a good listener in class
判断宏观经济结构均衡与否的主要观察对象是()
A. 产业结构
B. 产业组织
C. 产业布局
D. 产业关联
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