与“WHEREGradeNOTBETWEEN80AND90”语句等价的句子是( )
·WHEREGrade<80ORGrade>90
·WHEREGrade>=80ORGrade<=90
·WHEREGrade>=80ANDGrade<=90
·WHEREGrade>80ANDGrade<90
出自:佳木斯大学语言治疗学