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.
❓ 1885年推出的罗孚安全自行车的主要优势是什么?
A. A. 它比早期的型号更轻。
B. B. 它采用了链条传动和等大的车轮,因此更加安全。
C. C. 这是第一款被大规模生产的自行车。
D. D. 它可以折叠以便于存放。
✅ 正确答案
B. It had a chain drive and equal-sized wheels, making it safer.