【单选题】听力原文:W: How could you forget about such a large debt? M: Oh, no. I'll try to pay him back soon. You don't have to worry. What do we learn from the conversation?
【单选题】The region should ( ) a market mechanisms and try to develop into a new industrial base through reform. and innovation. 东北地区应该培养市场机制并努力通过改革和创新发展成为新工业基地。