Today we're going to discuss the history of the bicycle. Early bicycles, called velocipedes, appeared in the 19th century. They had wooden frames and iron wheels, making them very uncomfortable. In 1885, John Kemp Starley introduced the 'Rover' safety bicycle, which had a chain drive and equal-sized wheels. This design became popular because it was safer and faster than the penny-farthing. However, it wasn't until the 20th century that bicycles became widely affordable for ordinary people, especially after mass production techniques lowered costs. Now, bicycles are not just for transport but also for sport and leisure.
❓ 根据讲座内容,为什么“罗孚”安全自行车变得流行起来?
A. A. 它比其他自行车便宜。
B. B. 它有木制框架和铁轮。
C. C. 它比前轮大后轮小的自行车更安全、更快捷。
D. D. 这是有史以来发明的第一辆自行车。
✅ 正确答案
C. It was safer and faster than the penny-farthing.