【单选题】Consider an economy that produces only chocolate bars. In year 1, the quantity produced is 3 bars and the price is $4. In year 2, the quantity produced is 4 bars and the price is $5. In year 3, the qu...
【简答题】听短文,选择正确答案 1. In fact, what was the hill? A. A whale. B. A lion. C. A turtle. D. A tiger. 2. What was the mouse going to do? A. Buy some cheese. B. Sleep. C. Have a cheese party. D. Read some books. ...
【单选题】Consider an economy that produces only chocolate bars. In year 1, the quantity produced is 3 bars and the price is $4. In year 2, the quantity produced is 4 bars and the price is $5. In year 3, the qu...