Контрольные задания > The first two-wheeled rider-propelled machine Baron Karl von Drais de Sauerbrun of Germany. In 1817 he rode it for 14 km.

Вопрос:

The first two-wheeled rider-propelled machine Baron Karl von Drais de Sauerbrun of Germany. In 1817 he rode it for 14 km.

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Ответ:

C: invented

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A bicycle is a two-wheeled machine that is pedaled by the rider's feet. People bikes for hundreds of years. Historians disagree about the invention of the bicycle.
Some historians think that Leonardo da Vinci of a bicycle in 1492.
pedals. Nowadays there are different kinds of bikes. The mountain bicycle is used for riding on rough roads.
It has than 10 speeds, wide tyres, and strong wheels.