Today we're going to discuss the history of the bicycle. In the early 19th century, the first two-wheeled vehicle, called a 'velocipede', was invented in Germany. It had no pedals; riders pushed their feet against the ground. Later, in the 1860s, French inventors added pedals to the front wheel, creating the 'boneshaker'. However, it was very uncomfortable due to its wooden wheels and metal frames. The real breakthrough came in 1885 when John Kemp Starley designed the 'safety bicycle' with a chain drive to the rear wheel and equal-sized wheels, making it much safer and more practical for everyday use.
❓ 강의에 따르면, 1885년에 도입된 안전 자전거의 주요 장점은 무엇이었습니까?
A. 더 편안한 좌석이 있었다.
B. 그것은 이전 모델들보다 더 가볍고 빨랐다.
C. 체인 구동 방식과 동일한 크기의 바퀴를 사용하여 더 안전했습니다.
D. 페달이 달린 최초의 자전거였다.
✅ 正确答案
It used a chain drive and equal-sized wheels, making it safer