A.與GCD模塊有數(shù)據(jù)通信B.與無數(shù)據(jù)通信C.單元供電D.警告
A.主顯B.輔顯C.待顯D.應(yīng)急
A.電壓值與時(shí)間值B.電流值與時(shí)間值C.電壓值與電流值D.電壓值、電流值與時(shí)間值