A.20%~60%B.20%~80%C.10%~50%D.10%~90%
A.一類文件傳真機(jī)B.二類文件傳真機(jī)C.三類文件傳真機(jī)D.四類文件傳真機(jī)
A.G1B.G2C.G3D.G4