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.
【正确答案】
D
【答案解析】
提交答案
关闭