单项选择题
A.≤±0.2% B.≤±0.5% C.≤±1% D.≤±2%
A.铅酸蓄电池 B.镉镍碱性蓄电池 C.中倍率镉镍碱性蓄电池 D.高倍率镉镍碱性蓄电池
A.30A.h B.50A.h C.60A.h D.65A.h
A.1min B.30s C.10s D.5s
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