根据短文内容，回答下列问题。

    There are 22 classes in Mary's school. There are thirty five students in each class, but there are thirty four students in her class. There are twenty boys and fourteen girls. Her classroom is on the third floor(楼层). There's a computer and a television in her classroom. The computer is on the teacher's desk. There aren't any pictures in the classroom. The classroom is big and clean.