Today we're going to discuss the history of the bicycle. Now, many people think the bicycle was invented in the 19th century, but its earliest form, called the 'celerifere', appeared in France in the 1790s. However, it had no pedals or steering. Then, in 1817, a German inventor added a steering mechanism, but riders still had to push their feet along the ground. The first pedal-driven bicycle was developed in Scotland in 1839, but it was heavy and uncomfortable. It wasn't until 1885 that the modern 'safety bicycle' with equal-sized wheels and a chain drive became popular, making cycling accessible to a wider public.
❓ 1885년 안전 자전거가 이전 모델들에 비해 주요 개선점은 무엇이었나요?
A. A. 처음으로 조향 장치가 장착되었다.
B. B. 페달이 장착된 최초의 자전거였다.
C. C. 그것은 동일한 크기의 바퀴와 체인 구동 장치를 갖추고 있었다.
D. D. 이전의 모든 버전보다 더 가볍고 편안했습니다.
✅ 正确答案
C. It featured equal-sized wheels and a chain drive.