A、x=ι-ι4/(40R2I02)+ι9/(3456R4I04)…
B、x=ι-ι5/(40R2I02)+ι9/(3456R4I04)…
C、x=ι-ι3/(40R2I02)+ι9/(3456R4I04)…
D、x=ι-ι2/(40R2I02)+ι9/(3456R4I04)…
正确答案:B
答案解析:略

A、x=ι-ι4/(40R2I02)+ι9/(3456R4I04)…
B、x=ι-ι5/(40R2I02)+ι9/(3456R4I04)…
C、x=ι-ι3/(40R2I02)+ι9/(3456R4I04)…
D、x=ι-ι2/(40R2I02)+ι9/(3456R4I04)…
正确答案:B
答案解析:略