均衡营养、合理用药可以保障身体健康．

①维生素C能与I₂、Fe³⁺等发生反应，说明维生素C具有 ____（填“氧化”或“还原”）性；强酸、强碱对皮肤具有腐蚀作用，是因为蛋白质遇强酸、强碱会发生 ____（填“盐析”或“变性”）．

②某复方氢氧化铝片说明书（部分）如下：

【药品名称】复方氢氧化铝片

【主要成分】本品每片含氢氧化铝0.24g、三硅酸镁0.105g、颠茄流浸膏0.002 6mL

该药物可用于治疗 ____；

请写出任意一个相关的离子方程式： ____

你认为以下属于男女同学恰当交往的是(     ) 

侯氏制碱法的主要反应之一为：NaCl+CO₂+NH₃+H₂O═NaHCO₃↓+NH₄Cl，下面对该反应涉及的有关知识发表的部分见解，其中不正确的是（　　）

    One morning all the employees reached the office as usual. And on the wall they saw a big1on which it was written: Yesterday, the person who has been2your growth in this company passed3. We invite you to join the funeral(葬礼) prepared in the4.

    In the beginning, they all got5for the death of one of their colleagues(同事).6after a while they started getting7to know who was the man that limited the growth of his colleagues and the company itself.

The8in the gym was such that security guards were9to control the crowd within the room. The more people reached the coffin(棺材), the more the excitement10up. Everyone whispered to each other: “11on earth is this guy?”

    One by one the excited employees got closer to the coffin, and when they12inside it, they13became speechless. They stood nearby the coffin, shocked and in14, as if someone had15the deepest part of their soul.

    There was a16inside the coffin; everyone who looked inside it could see himself. There was also a sign next to the mirror that17: there is only one person who is18to set limits to your growth: IT IS19! Your life doesn't change when everyone around you changes. Your life changes when YOU change, when you go beyond your limiting beliefs inside. Don't be afraid of20; build yourself and your reality. It's the way you face life itself that makes the difference!