对于学生信息表：student(sno，sname，sex，age，dept)，能够得到年龄在20岁至22岁之间的学生的姓名和学号的语句是( )。

A．SELECT*FROM student WHERE age BETWEEN 20 AND 22
B．SELECT sname，sno FROM student WHERE age BETWEEN 20 AND 22
C．SELECT sname，sno FROM student WHERE age>=20
D．SELECT sname，sno FROM student WHERE age<=22