Today we're going to discuss the history of the bicycle. The first two-wheeled vehicle, called the draisine, was invented in 1817 by a German baron. It had no pedals; riders pushed their feet against the ground. Later, in the 1860s, pedals were added to the front wheel in France. This design, known as the velocipede, was popular but uncomfortable due to its rigid frame. The major breakthrough came in 1885 when the safety bicycle was introduced, featuring a chain drive and two equal-sized wheels, making it much safer and faster than previous models.
❓ 1885年推出的安全自行车的主要优势是什么？
A. 它的座位更舒适。
B. 由于链条传动和等径车轮，它更加安全且速度更快。
C. 这是第一辆带有脚踏板的自行车。
D. 它比所有早期型号都更轻。
✅ 正确答案
It was safer and faster due to the chain drive and equal wheels.