【简答题】A new species of snake has been discovered on a remote island in the Bahamas. Scientists identified 20 of the one meter-long snakes during two trips to the Caribbean islands. The second trip was made ...
【简答题】Alexander Graham Bell was born in Scotland and first came to the new world for his health, (1) in 1890 and later to Washington,D. C. at the age of 24. He is widely known for his invention of the telep...