A、1,0.02 B、0.5,0.01 C、0.5,0.02 D、1,0.01
A.+/-10% B.+/-20% C.+/-25% D.+/-30%
A.下置式,中置式,頂置式 B.上置式,中置式,下置式 C.上置式,頂置式 D.上置式,下置式