Today we're going to discuss the history of the bicycle. In the early 19th century, the first two-wheeled vehicle, called a 'draisine', was invented by Karl von Drais. It had no pedals, and riders pushed their feet against the ground to move. Later, in the 1860s, pedals were added to the front wheel, creating the 'boneshaker'. However, this design was uncomfortable and difficult to ride. The real breakthrough came in 1885 when John Kemp Starley introduced the 'Rover', which had a chain drive to the rear wheel and equally sized wheels, making it much safer and faster. This design became the basis for modern bicycles.
❓ 1885년에 출시된 로버 자전거의 주요 장점은 무엇이었나요?
A. A. 더 큰 앞바퀴를 장착하여 속도를 높였다.
B. B. 페달이 달린 최초의 자전거였다.
C. C. 안전을 위해 체인 구동 방식과 동일한 크기의 바퀴를 갖추고 있었다.
D. D. 이전의 모든 모델보다 가벼웠다.
✅ 正确答案
C. It featured a chain drive and equal wheels for safety.