下列各书中,大于3/1且小于2/1的数是( ) A.12/5 B.13/4 C.12/7 D.12/11

问题描述:

下列各书中,大于3/1且小于2/1的数是( ) A.12/5 B.13/4 C.12/7 D.12/11

A.