What is the first paragraph mainly about? Why are jade and jade finders mentioned in the passage?

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问题 What is the first paragraph mainly about?
Why are jade and jade finders mentioned in the passage?

选项 A、Because jade finders used the compass to detect lodestone.
B、Because jade was hard enough to make the compass.
C、Because jade finders were possibly the inventors of the compass.
D、Because jade and lodestone were found in the same mountains.

答案C

解析

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职称英语理工类C级

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What is the first paragraph mainly about? Why are jade and jade finders mentioned in the passage?

职称英语理工类C级

职称英语

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