下列做法不正确的是 A.用熟石灰改良酸性土壤 b.用洗洁精清洗餐具上的油污 c.用食盐水检验硬水和软水 d.用氮气充入食品包装袋防腐——青夏 Template




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tomski下列做法不正确的是 a.用熟石灰改良酸性土壤 b.用洗洁精清洗餐具上的油污 coloring