一个英语阅读题求助（急）题目：Read the passage and write down the topic sen
一个英语阅读题求助（急）
题目：Read the passage and write down the topic sentence of each paragraph.
内容：Thomas Edison was one of the greatest inventors（发明家）in the world.Without his inventions,people may not have lights,films and many other things.But this very clever man had very little schooling.
Edison began to make a talking machine in 1877.At first,he used paper to make a sound.He worked for months on this idea.At last he found out how to record a person's voice.But the first machine was very simple and the voice was not clear.Then he spent another long time on it.He changed some parts and put some new ones on the talking machine.This time the voice could be played back and the voice was also very clear.
问题：Paragraph1:
Paragraph2:
题目：Read the passage and write down the topic sentence of each paragraph.
内容：Thomas Edison was one of the greatest inventors（发明家）in the world.Without his inventions,people may not have lights,films and many other things.But this very clever man had very little schooling.
Edison began to make a talking machine in 1877.At first,he used paper to make a sound.He worked for months on this idea.At last he found out how to record a person's voice.But the first machine was very simple and the voice was not clear.Then he spent another long time on it.He changed some parts and put some new ones on the talking machine.This time the voice could be played back and the voice was also very clear.
问题：Paragraph1:
Paragraph2:
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Paragraph1
Though he had very little schooling,Thomas Edison was one of the greatest inventors in the world.
Paragraph2:
The zigzag (曲折的)process of making a talking machine
Though he had very little schooling,Thomas Edison was one of the greatest inventors in the world.
Paragraph2:
The zigzag (曲折的)process of making a talking machine
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