Today we're going to discuss the history of the bicycle. The first bicycle, called the 'draisine', was invented in 1817 by a German baron. It had no pedals, and riders pushed themselves along with their feet. In the 1860s, pedals were added to the front wheel, creating the 'velocipede'. However, this design was uncomfortable and hard to ride. Then, in 1885, the 'safety bicycle' was introduced with a chain drive and two equal-sized wheels, making it much more stable and popular. By the early 1900s, bicycles had become a common mode of transport for ordinary people.
❓ 安全自転車の主な利点は、以前のモデルと比べて何でしたか？
A. A. それはより軽く、そして生産するのにより安価でした。
B. B. より快適なシートとハンドルバーを備えていた。
C. C. 等しいサイズの車輪とチェーン駆動により、より安定していた。
D. D. 平坦な道ではより速く走行できた。
✅ 正确答案
C. It was more stable due to equal-sized wheels and a chain drive.