单项选择题
如图所示,SW闭合瞬间i=()
A.0 B.2A C.3A D.4A
A.36.8V;-18.4mA B.13.5V;-6.25mA C.36.8V;18.4mA D.100V;-5mA
A.50V;50mA B.50V;0 C.100V;100mA D.100V;0