Good morning. Today we're going to discuss the history of the bicycle. Although many people credit the invention to the 19th century, the first two-wheeled vehicle, called the draisine, appeared in 1817 in Germany. It had no pedals; riders pushed their feet along the ground. Later, in the 1860s, pedals were added to the front wheel, creating the velocipede, which was nicknamed the 'boneshaker' due to its rough ride. By the 1880s, the chain-driven bicycle with two equal-sized wheels became popular, making cycling safer and more efficient. This design remained largely unchanged for over a century.
❓ 1880년대에 개발된 자전거의 주요 특징은 무엇이었는가?
A. A. 페달이 없었고 발로 밀었다.
B. B. 앞바퀴에 페달이 연결되어 있었다.
C. C. 그것은 체인 구동 장치와 크기가 같은 두 개의 바퀴를 사용했다.
D. D. 거친 승차감 때문에 '본셰이커'라고 불렸다.
✅ 正确答案
C. It used a chain drive and two equal-sized wheels.