Good morning, everyone. Today we're going to discuss the history of the bicycle. The first bicycle, invented in 1817 by a German baron, was made of wood and had no pedals; riders pushed their feet against the ground to move forward. In the 1860s, French inventors added pedals to the front wheel, creating the 'velocipede'. However, it was uncomfortable due to its rigid frame. By the 1880s, the 'safety bicycle' appeared with a chain drive and two equal-sized wheels, making it much safer and more popular. Interestingly, the popularity of bicycles in the late 19th century also influenced women's fashion, leading to more practical clothing.
❓ 1880년대에 소개된 안전 자전거의 주요 특징은 무엇이었나요?
A. A. 그것은 나무 프레임을 가지고 있었고 페달이 없었다.
B. B. 앞바퀴에 페달이 연결되어 있었다.
C. C. 그것은 체인 구동 방식을 사용했으며, 크기가 같은 두 개의 바퀴를 가지고 있었다.
D. D. 그것은 주로 여성 패션을 위해 설계되었습니다.
✅ 正确答案
C. It used a chain drive and had two equal-sized wheels.