【Daily Question No. 57】February 26, 2021

2021-02-26View Original

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【Daily Question No. 57】February 26, 2021: The COD of water can be determined by measuring the oil content in it. True or False ( ) Please respond within two days.

Reply #22021-02-27

Error analysis: COD is an indicator used to measure the amount of organic matter in water. The higher the chemical oxygen demand, the more severe the pollution of the water body by organic substances.

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【Daily Question No. 57】February 26, 2021

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