問題詳情
【題組】18. Why does the author mention both Boston and Chicago?
(A)To demonstrate positive and negative effects of growth.
(B)To show that mass transit changed many cities.
(C)To exemplify cities with and without mass transportation.
參考答案
答案：B
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)