第14题: [单项选择]What is the usage of the Pony Express A. To help people travel from coast to coast. B. To train riders for competition. C. To transfer materials and messages. D. To arrest criminals in the West. 参考答案:C 答案解析:文章开头已说明由于传递不僵,快马传递因此诞生,文章最后又提到由于西部通了电报,快马传递因此消亡,从中得出结论,快马传递是传送物资和消息的。