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Before airplanes were invented, _____ made sketches of flying machines. A. Johann Gutenberg B. Leonardo da Vinci C. Isaac Newton D. Niccolò Machiavelli
Before airplanes were invented, _____ made sketches of flying machines. Answer is: B. Leonardo da Vinci
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Asked 7/17/2013 1:13:26 PM
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Updated 145 days ago|2/26/2014 9:11:47 AM
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D. Odoacer ousted the emperor of Rome in 476, causing "the fall of Rome".
Added 145 days ago|2/26/2014 9:11:45 AM
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