A.≥0.5MΩ(運(yùn)行中≥1000Ω/V) B.≥2MΩ C.≥1MΩ,(潮濕環(huán)境中≥0.5MΩ) D.≥400~1000MΩ
A.10% B.20% C.30% D.40%
A.5% B.7% C.8% D.10%