某同学为验证植物的根从土壤溶液中吸收矿质元素和植物的生活需要矿质元素设计了如下实验称取肥沃的土壤100g倒入烧杯加200ml自来水 Template




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tomski某同学为验证植物的根从土壤溶液中吸收矿质元素和植物的生活需要矿质元素设计了如下实验称取肥沃的土壤100g倒入烧杯加200ml自来水 coloring