One of the first inventions of Edison was an improvement of Alexander Bell’s telephone.
举一反三
- Who invented the telephone and made the first phone call A: Robert Einstein B: Alexander Graham Bell C: Thomas Edison
- Alexander Graham Bell invented ________ telephone in 1876.
- Alexander Graham Bell first came to the new
- Thomas Edison’s important inventions include _______.
- 有线电报发明人为 。 A: Samuel Morse B: Alexander Bell C: Guglielmo Marconi D: Thomas Edison