WHAT WAS EDISON WORKING ON WHEN HE CREATED THE PHONOGRAPH

Question

3. What was Edison working on when he created the phonograph?A. A telegraph repeater B. A telegraph diaphragmC. A telephone repeater D. A telephone diaphragm

Accepted Answer

1. Their house has been cleaned recently. 3. It is not easy/ difficult to find an apartment. 4. I wish I had money to repair his bicycle. 5. Although he has worked hard, he can’t support his large fa....

WHAT WAS EDISON WORKING ON WHEN HE CREATED THE PHONOGRAPH

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