A.Supplies toner to the photoconductor B.Charges the surface of the photoconductor C.Writes the latent image on the photoconductor D.Cleans the photoconductor
A.選擇性B.快速性C.靈敏性D.以上均正確
A.異常子宮出血B.IUD及宮內(nèi)異物定位,試取C.宮腔黏連D.以上均是