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水中轮虫数量越多,表明水质状况( )

A、溶解氧越高,水质越差 

B、溶解氧越高,水质越好 

C、溶解氧越低,水质越好 

D、溶解氧越低,水质越差  

时间：2021-07-17 23:32 关键词：水利水电建筑工程高起专水利工程测量 2019毕业清考 2019级毕业清考（考试分） 2019级第三学期期末考试

答案解析

B

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