做97个零件,全部合格,合格率是( ) A.98% B.97% C.100 日期:2016-05-11 02:40:39 人气:1 做97个零件,全部合格,合格率是( ) A.98% B.97% C.100 97 97 ×100%=100%;答:合格率是100%;故选:C.