一 You'd better not eat too much salt. It's bad for your health.

一 _______.

一 You'd better not eat too much salt. It's bad for your health.

一 _______.

根据短文内容，选择正确答案。

Many kids think they are ordinary. They think they aren't the prettiest or the smartest. At the same time, they think they aren't even the ugliest or the silliest，which would at least make them stand out. Everyone feels that way sometimes, especially in middle school. Kids seldom realize how special they are. When they see amazing athletes or cool pop stars, they often think: What have I got?

    It is all part of growing up. Growing up means understanding what you can do and what you can offer the world. When you're young, you don't see that. But as you get older, you realize that just by being yourself, you do offer something to other people. Maybe you aren't the best, but that doesn't make you “not amazing”.

    Think about your friends. Write down a list of things you like about them. Think about why you are friends with them in the first place. You will get to know that in the end, no matter if they aren't the smartest or the prettiest or the most talented, they are great in their own way. And they feel just the same about you!

    Remember, it gets easier as you grow older. You will realize that being the best at something is great, but it's okay if you cannot be the best. If you just live your life and try hard, you are still pretty amazing.

下列实数$\frac{\mathrm{\pi }}{2}$，$\frac{22}{7}$，0.7171171117…（相邻的两个7之间1的个数逐次加1），$\sqrt[3]{9}$，$\sqrt{\frac{1}{2}}$中，无理数的个数是（　　）