A.100% B.103% C.105%
A.电源系统可处于充电状态 B.发动机处于熄火状态 C.电源可处于无电状态
A.3.5 B.4.0 C.4.5
A.3~5 B.6~10 C.10~20
A.一 B.二 C.四