单项选择题
与表达式“BETWEEN 50ANDl00'’功能相同的表达式是( )，
A．“>=50AND<=100”
B．“>50AND<100”
C．“<=500R>=i00”
D．“IN(50,100)”
B．“>50AND<100”
C．“<=500R>=i00”
D．“IN(50,100)”
