A.非物理量 B.电压 C.电流 D.功率
A.1 B.2 C.3 D.4
A.>=1.0%,>=1.5%,>1.0% B.>=1.0%,>1.0%,>=1.5%, C.>=1.0%,>=1.5%,<1.0% D.>=1.0%,<1.0%,>=1.5%