某中学的课外活动小组学生为了调查该地某湖泊的水质污染原因在注入湖泊的4个主要水源入口处采集水样检测结果如下表注硫化氢是蛋白质等有机物 Template




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tomski某中学的课外活动小组学生为了调查该地某湖泊的水质污染原因在注入湖泊的4个主要水源入口处采集水样检测结果如下表注硫化氢是蛋白质等有机物 coloring