Good morning, everyone. Today we're going to discuss the history of the bicycle. Many people assume the bicycle was invented in the 19th century, but its predecessor, the draisine, appeared in 1817. However, the real breakthrough came in 1885 with the Rover safety bicycle, which had a chain drive and equal-sized wheels. This design made cycling much safer and more accessible, especially for women. By the early 1900s, bicycles became a common mode of transport in European cities. Interestingly, the popularity of bicycles declined with the rise of motor vehicles, but they saw a revival during the oil crisis in the 1970s. So, the bicycle's history is closely tied to social and economic changes.
❓ 1885년에 출시된 로버 안전 자전거의 주요 장점은 무엇이었나요?
A. A. 그것은 이전 모델들보다 더 가벼웠다.
B. B. 그것은 체인 구동 방식과 동일한 크기의 바퀴를 갖추어 더 안전했다.
C. C. 대량 생산된 최초의 자전거였다.
D. D. 접어서 보관하기 쉽게 만들 수 있었다.
✅ 正确答案
B. It had a chain drive and equal-sized wheels, making it safer.