位于我国地势第二级阶梯上的地形区是（    ）

B

    I'm Tom and I like sports. Basketball is my favourite. I play it in. my school in the morning. My school is big and there is a playground and a sports hall in it. Every morning, many teachers and students play sports in the playground. I play there with my friends too. When the weather is bad we play in the sports hall. It's on the left of the playground. Now I'm in the sports hall but I don't play basketball. Some students from London are in our school and I'm their guide (导游).

    My family also like sports too. My parents kick(踢)jianzi near our home every morning. My sister Mary plays table tennis with her classmates in their school. It is small but beautiful.

在自我认识的过程中，下列诗句所表达的主旨与“旁观者清，当局者迷”一致的是（    ）