What can be inferred about railroads in 1849 from the information in the last paragraph

Câu hỏi :

Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate Read the following passage and mark the letter A, B,C, or D on your answer sheet to indicate

A. They were being planned but had not been built

B. They were seriously underdeveloped.

C. They had begun to compete with the Eric Canal for traffic.

D. They were weakened by the expansion of the canal.

* Đáp án

* Hướng dẫn giải

Đáp án là C

Đoạn 4: “Increased traffic would undoubtedly have warranted its construction had it not been for the railroads.” = Lượng giao thông tăng thêm không nghi ngờ gì đã chứng minh công trình này là đúng nếu không vì những tuyến đường sắt

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