问题
单项选择题
Which of the following is true about American transportation system a. Only those who are well off can afford to travel by plane. b. Trains run even slower than cars. c. People prefer to take trains even they are slower than planes. d. Cars are preferred over planes.
答案
参考答案：B
解析：[听力原文]Here in America, the train system isn’t very good. Trains don’t go any faster than cars; you’re better off taking a plane.