考博英語閱讀理解若干篇篇章與問題

Passage 1

The physical distribution of products has two primary aspects: transportation and storage. Both aspects are highly developed and specialized phases of marketing. The costs of both trans-porting and storing are built into the prices of products. Transportation can be by truck, rail-

way, ship, or barge. For some items, such as exotic plants and flowers, or when rapid delivery is essential, air freight may be used.