The decibel（分贝）is one tenth of a bel, ______ named after Alexander Graham Bell.
举一反三
- Alexander Graham Bell first came to the new
- Alexander Graham Bell invented ________ telephone in 1876.
- Who invented the telephone and made the first phone call A: Robert Einstein B: Alexander Graham Bell C: Thomas Edison
- One of the first inventions of Edison was an improvement of Alexander Bell’s telephone.
- Alexander Graham Bell first came to the new 1)______for his 2)______. In 3) ______, he moved to Canada. Later, at the age of 4)______, he moved to Washington. For a time, Bell and his father had both studied and worker together on the development of 5)______and the teaching of the 6)______ . In 7)______, Bell exhibited an apparatus to transmit 8)______ by electricity and this was the basis of the modern 9)______ . In 10)______, with assistance, Bell, a pioneer of the hydrofoil, built a 11)______, which was able to travel over 70 miles per hour. In 12)______, Bell 13)______in Nova Scotia, and that province has established the Alexander Graham Bell National Historic Park in his memory.