Today we're going to discuss the history of the bicycle. The first true bicycle, called the 'draisine', was invented in 1817 by a German baron. It had no pedals; riders pushed their feet against the ground. In the 1860s, French inventors added pedals to the front wheel, creating the 'velocipede'. However, it was very uncomfortable due to its rigid frame. Later, the 'penny-farthing' with a huge front wheel became popular, but it was dangerous. Finally, in 1885, the 'safety bicycle' with two equal-sized wheels and a chain drive was introduced, making cycling much safer and more practical for everyday use.
❓ 1885년에 도입된 안전 자전거의 주요 특징은 무엇이었나요?
A. A. 페달이 없었습니다.
B. B. 그것은 거대한 앞바퀴를 가지고 있었다.
C. C. 그것은 두 개의 동일한 크기의 바퀴와 체인 드라이브를 갖추고 있었다.
D. D. 그것은 어떠한 서스펜션도 없는 견고한 프레임을 가지고 있었다.
✅ 正确答案
C. It had two equal-sized wheels and a chain drive.