查询分数在60分(含)～90分(含)之间的学生可以使用的WHERE语句是：
WHERE score >= 60 OR score <= 90
WHERE score >= 60 AND score <= 90 [T]
WHERE score IN (60, 90)
WHERE score BETWEEN 60 AND 90 [T]
WHERE 60 <= score <= 90
BETWEEN 和 AND 同等
x <= n <=y 和 OR 同等
n <> x 和 NOT 同等
