根据短文内容，从A、B、C、D四个选项中选取正确答案填空。

A

    Two students of the World Wide Friends Club write to their friends on the Internet.

    Hello, friends! My 1 is Andy. I have black hair and I 2 glasses. My friends say I am cool with them. I am in 3 this year. I like all my lessons, 4 I'm not good at Maths. I love football very much. I often play football with my classmates. 5 are all nice. I love them.

    Hi, I 6 Mary. I study at a middle school. I am thirteen years old. I 7 black hair and brown eyes. This is my classroom. There are 50 small 8 and chairs in it. On the back wall (墙)9a kite. It is my work. On the teacher's desk, there are some flowers. They are 10 our teachers. My classroom is a big and nice room.

“山有多高，水有多高。”在哀牢山区，一年四季都有水汽蒸腾升空，形成云雨。这里的水汽来自(      )

下列文学、文化常识说法有误的一项是（    ）