Stephenson: invented the steam locomotive; Siemens: Invented motors, generators, etc. C Einstein: put forward physical theories such as relativity; Karl benz: Invented the automobile.
Why did I say B Siemens? There is a simple reason. Watt invented the steam engine, which brought mankind into age of steam, thus triggering the first technological revolution. Siemens invented the motor and generator, which brought mankind into the electrical age and triggered the second scientific and technological revolution. The inventions of Watt and Siemens triggered a new round of scientific and technological revolution in the world. So Watt and Siemens have the most similar contributions to human beings, while the inventions of several people in other options are not so similar to Watt.
By the way, I didn't see what I was saying clearly. Watt and Siemens made the most similar contributions to the invention of transportation. Watt invented the steam engine, and later scientists invented steam locomotives, steam-powered cars and steam-powered ships. Siemens invented the motor and generator, and later scientists invented the electric locomotive. Cars and ships run on generators. One of their inventions brought human vehicles into age of steam, and another invention brought human vehicles into the era of electrical appliances. Their invention is the technical basis of a new round of automobile revolution.
"Tomb Benny": Didn't you see that they said they would take the senior high school entrance examination? This is related to people's lives. Don't talk nonsense if you don't understand!
1876, the German inventor Otto successfully manufactured the first reciprocating piston, single cylinder, horizontal, 3.2 kW (4.4 HP) four-stroke internal combustion engine.
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Karl benz was the first person to use the internal combustion engine in a car, not the person who invented it.
Some mistakes in the answer are inevitable, but such serious mistakes are directly related to the right or wrong of the topic and should not be made. If you don't know who invented it, you can check the information on the internet first and find out before you answer. People just asked, he is going to take the senior high school entrance examination, and our answer is responsible for him!