【简答题】Maria can read 20 pages of economics in an hour.She can also read 50 page of sociology in an hour.She spends 5 hours per day studying. Draw Maria's production possibilities frontier for reading econom...
【简答题】Maria can read 20 pages of economics in an hour. She can also read 50 pages of sociology in an hour. She spends 5 hours per day studying. a. Draw Maria’s production possibilities frontier for reading ...
【简答题】补全对话。 A: Hello. 1 ___________? B: Yes, this is Maria speaking. A: Maria, 2 ___________? I can't remember. B: We have English, math, Chinese and PE in the morning. Then History and computer in the afte...