图示电路在t=0时开关闭合,t≥0时u(来学网)(t)为:
  • A.
    -100(1-(来学网))V
  • B.
    (-50+50(来学网))V
  • C.
    -100(来学网)V
  • D.
    -50(1-(来学网))V
电工电子技术