根据短文内容，完成表格。

    Nowadays, more and more teenagers go to study in foreign countries. If you want to do that, here's some information for you.

1  Though you have to spend much money on your education in China, you should know that studying abroad will cost you much more money.

2  You'll have to look after yourself and learn to be independent(独立的). When you say goodbye to your family, you should know that you're not going to travel for a week, but live in a foreign country. You'll have to do everything by yourself even when you are sick. You'll have to get used to the life there.

3  You can learn a foreign language more easily if you live in that country, but you may have some trouble before you can speak the language well.

4   You can make friends from other countries, but there may be some misunderstanding(误会) between you and your friends because of different cultures. Information Card

材料一：“秦王扫六合，虎视何雄哉；挥剑决浮云，诸侯尽西来。”

——李白《古风·秦王扫六合》

材料二：如图1，2所示

材料三：历史学家翦伯赞认为：在我看来，秦始皇是中国封建统治阶级中的一个杰出人物，我说秦始皇是中国封建统治阶级中的一个杰出人物，不是因为他是一个王朝的创立者，而是因为他不自觉地顺应了中国历史发展的方向，充当了中国新兴地主阶级开辟道路的先锋，在中国历史上，消灭了封建领主制，开创了一个中央集权的封建专制主义的新的历史时代。

请回答：

为预防老年人患骨质疏松症，可以适量补充下列哪类无机盐和维生素（　　）