A.輸入點(diǎn)X B.輸出點(diǎn)Y C.數(shù)據(jù)存貯器D D.定時(shí)器
A.機(jī)型 B.通信規(guī)約 C.通道板 D.介質(zhì)
A.0.6 B.0.7 C.0.8 D.0.9