Good morning, everyone. Today we're going to look at the history of the bicycle. Now, you might think the bicycle was invented in the 19th century, and you'd be right. However, the first two-wheeled vehicle, called a 'draisine', appeared in 1817, invented by a German baron. It had no pedals; you pushed it with your feet. Later, in the 1860s, pedals were added to the front wheel in France. But it was the 'safety bicycle' in the 1880s, with a chain drive and two equal-sized wheels, that became truly popular. This design is essentially what we still use today.
❓ 1880년대에 도입된 '안전 자전거'의 주요 특징은 무엇이었는가?
A. A. 그것은 매우 큰 앞바퀴를 가지고 있었다.
B. B. 앞바퀴에 페달이 연결되어 있었다.
C. C. 그것은 체인 구동 장치와 크기가 같은 두 개의 바퀴를 가지고 있었다.
D. D. 그것은 페달이 없었고 발로 밀었다.
✅ 正确答案
C. It had a chain drive and two equal-sized wheels.