What is the relationship between Teresa and Diane?
A. Sisters.
B. Mother and daughter.
C. Roommates.
D. Teacher and student.
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Which of the following classes might Teresa find interesting?
A. Chemistry.
B. Spanish literature.
C. Geography.
D. Russian history.
How would you describe Teresa’s father?
A. Supportive.
B. Uncaring.
C. Excited.
D. Indifferent.
市场失灵是指( )。
A. 市场没有达到可能达到的最佳结果
B. 市场没能使社会资源的分配达到最有效率
C. 市场未能达到社会收入的公平分配
D. 以上都是
汽车排放废气导致的对健康的影响属于下列哪种情况?( )
A. 私人成本
B. 外部成本
C. 内部成本
D. 以上都不是
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