The dentist has decided to take out the girl's bad tooth.

单项选择题The Lemelson-M1T Prize has a history of over 100 years.

单项选择题Edith Flanigen is the only co-inventor of LEDs.

单项选择题Holonyak said that you should not do anything you are not interested in.

单项选择题Holonyak believed that LEDs would become very popular in the future.

单项选择题Holonyak was the inventor of the transistor in the early 1950s.