In today's lecture, we'll discuss the history of urban transportation. Initially, horse-drawn carriages dominated city streets in the 19th century. However, with the invention of the electric tram in the 1880s, cities began to shift towards more efficient public transit. By the 1920s, buses powered by internal combustion engines started to replace trams in many areas because they were cheaper to operate and more flexible in routing. Nevertheless, trams remained popular in some European cities due to their capacity and lower pollution. Today, many cities are reintroducing trams as part of sustainable transport plans, despite initial high infrastructure costs.
❓ 강의에 따르면, 1920년대에 버스가 트램을 대체하기 시작한 이유는 무엇인가요?
A. A. 버스는 승객들에게 더 편안했다.
B. B. 버스는 운영 비용이 더 낮았고 노선 유연성이 더 컸다.
C. C. 트램은 너무 느리고 신뢰할 수 없었다.
D. D. 대중은 환경적인 이유로 버스를 선호했다.
✅ 正确答案
B. Buses had lower operating costs and greater route flexibility.