在职攻硕英语考试

【单选题】 What's the author's purpose in writing this passage
A．To show the inability of trains to compete with planes with respect to speed and convenience.
B．To stress the influence of the automobile on America's standard of convenience.
C．To emphasize the function of travel agencies in market promotion.
D．To illustrate the important role of persuasive communication in changing consumer attitudes.

网考网参考答案：D
网考网解析：
简单分析一下文章结构：开头提出问题，进而剖析原因，最后解决问题。 查看试题解析出处>>