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22-06-2021
Social Studies

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Elijah McCoy’s invention of the automatic oil cup made his job ______________.

A) safer

B) more efficient

C) all of the above

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Vanfleet Vanfleet

22-06-2021

Answer: C.

Explanation: Elijah s' invention was a great help for the steam-moved locomotives and ships, because they wouldn't have anymore to stop their routes with greased engines.

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