Why did the world start to change in the early 1800’s?
选项:
A:Because there were few inventions that had as much effect as the wheel for hundreds of years.
B:Because there was little unknown land left in the world.
C:Because people did not have to explore much anymore.
D:Because people began to work to make life better instead of exploring unknown world.
发布时间:2024-06-11 09:59:43