The fact that a rock star earns $5 million a year while a teacher earns $25,000 annually is most directly an example of an economy answering the ( ) part of one of the two big economic questions.
【简答题】Choose the right answer according to the passage your hear. 1. The woman the couple. [ ] A. likes B. doesn't like C. is speaking to 2. The speakers will provide the food and the guests will bring ...