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