学生成绩表Grade中有字段Score(float),现在要把所有55~60分的分数提高5分,以下SQL语句正确的是( )。
A.
update Grade set Score = Score + 5
B.
update Grade set Score = Score + 5 where Score >= 55 or Score <= 60
C.
update Grade set Score = Score + 5 where Score between 55 and 60
D.
update Grade set Score += 5 where Score >= 55 and Score <= 60