When transportation costs are added to production costs, it becomes unprofitable to ship some products over a large distance. This is particularly true of products that: 当运输成本增加到生产成本时,远距离运输一些产品就变得无利可图了。对于以下产品尤其如此:
【简答题】阅读理解。 Hello! I am Mingming. I live in a big house. It is with a garden. This is our living room. We watch TV in it. This is my parents’ bedroom. This is my bedroom. It is clean. I study in my bedroom....