Conclusion All of 10 kinds MMMF could induce DNA strand breaks in different degrees, but the effect was lower than that of chrysotile fiber.

结论10种人造矿物纤维均可引起不同程度的DNA链损伤，但损伤程度除耐火纤维外，均低于温石棉。

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The chapter four analyzes the MMF's nature character and points out that the MMF is the interest-bearing asset, non-risk asset and the MMMF is one special intermedia institution.

第四章从理论角度分析了货币市场基金的本质特征，指出货币市场基金份额本质上是一种生息资产、无风险资产，而货币市场共同基金本质上是一种特殊的中介机构。

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