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OpenStudy (anonymous):

Using steel to build a tall structure was an innovation of A. Guglielmo Marconi B. Thomas Edison C. Alexander Graham Bell D. Jean Lenoir E. Gustav Eiffel

OpenStudy (anonymous):

I'll give you a hint, a famous tower was named after him.

OpenStudy (anonymous):

E.?

OpenStudy (anonymous):

Yep.

OpenStudy (anonymous):

Thanks.

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