47. Which of the following best describes early bus drivers?
(A) They had previous work experience ia public transportation,
(B) They were cautious in business matters
(C) They did not at first have high costs.
(D) They did not have many competitors
我认为原文相关的就有一句话
Frequently driving used vehicles, these drivers concentrated on local services
operated on a consumer-demand basis with the driver taking cash fares.
47. Few knew much about transport or about business, but they were willing to take a chance on a new venture that had low entry costs.
这句直接支持c,排除A
B,D文章没提到
39.直接的逻辑关系,不要发散(老罗的话)
The most common symbol of pioneer North America, the log cabin, emerged in the Delaware Valley, and ought to serve as a symbol of this composite culture.