A.1顆 B.2顆 C.3顆 D.4顆
A.≥10cm B.≥15cm C.≥20cm D.≥25cm
A.接通率=掉話總次數(shù)/接通總次數(shù)×100% B.接通率=被叫接通總次數(shù)/主叫試呼總次數(shù)×100% C.接通率=主叫接通總次數(shù)/試呼總次數(shù)×100% D.接通率=接通總次數(shù)/試呼總次數(shù)×100%