发帖
雷达卡
Unit 2 Smart Cars
经济管理学院10 市场营销年3月2日
The importance of cars
Car is a kind of traffic tools in our lives. It changestransportation and our lives. We can see it from the pictures.
The history of cars
V Nicolas Joseph CugnotFrom France invented first self-propelled mechanical vehicle in 1769.Built the first True AutomobileTricycleSteam Engine4 passengers2.25 miles per hour
The Year Of Revolution
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