A.48V B.52V C.53.5V D.56.4V
A、指示數(shù)大于實(shí)際電流 B、指示數(shù)小于實(shí)際電流 C、指示數(shù)與實(shí)際數(shù)相等
A.92% B.90% C.99% D.85%