16.为探究某食品包装袋内一小包脱氧剂中的还原铁粉是否变质分别取�量样品溶于足量的稀盐酸充分反应后再进行下列实验其结论正确的是 A Template




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tomski16.为探究某食品包装袋内一小包脱氧剂中的还原铁粉是否变质分别取�量样品溶于足量的稀盐酸充分反应后再进行下列实验其结论正确的是 a coloring