阅读短文，判断正(T)误(F)。

      Hello, I am Mary. My father is Mr. Smith. He is a businessman. My mother is Mrs. Smith. She is a doctor.

I have two brothers, John and Tom. John is twenty-four years old. He is a bus driver. Tom is eleven. I am

thirteen years old. We are students. We love my family.

( ) 1. My name is Mary Smith.

( ) 2. My family has four people.

( ) 3. My father is a doctor.

( ) 4. Tom is a student.

( ) 5. John is older than Tom.

在数据库中可以设计视图和查询，其中______不能独立存储为文件(存储在数据库中)。