谜底：They're all dead.他们都已过世。
谜语：Can you tell me some thing about the great scientists of the 18th century？
谜语：Can you tell me some thing about the great scientists of the 18th century？
谜语推荐
- what's too much for two and just right for one?
- a red coat, white body and black heart.
- what is black when it's clean and white when it's dirty ?
- It has red face,and green leaves
- What is the smallest bridge in the world?
- it’s a furit. it’s also a color. what is it?
- What never asks questions but gets a lot of answers?
- What always goes up and never goes down?
- What has a tongue but cannot talk?
- what man cannot live in a house?