阅读下列材料,回答题。What is the main topic of this passage?

阅读下列材料,回答题。What is the main topic of this passage?

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The word "mingling" underlined in Paragraph 2 refers to_____

The word "mingling" underlined in Paragraph 2 refers to________

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为保证计量与支付准确、真实和合法,合同条款和各项目监理组织规定了严格的程序。( )

为保证计量与支付准确、真实和合法,合同条款和各项目监理组织规定了严格的程序。( )

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Part of the reason for the change in focus from economics to

Part of the reason for the change in focus from economics to a more multifaceted

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以下选项中、利润总额在总产值中所占比例最低的是(  )。

以下选项中、利润总额在总产值中所占比例最低的是(  )。

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