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OpenStudy (thefluffmuncher):
What is Elisha Otis best known for? A. He designed Central Park in New York City. B. He was an architect who built the first skyscrapers. C. He devised an electrical system that used alternating current. D. He invented the first safe elevator.
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OpenStudy (anonymous):
the answer id D
OpenStudy (thefluffmuncher):
thank you your my hero ;)
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