(来学网)(2011)在RC串联电路中,已知外加电压u(t)=[20+90sinωt+30sin(3ωt+50°)+10sin(5ωt+10°)]V,电路中电流i(t)=[1.5+1.3sin(ωt+85.3°)+6sin(3ωt+45°)+2.5sin(5ωt-60.8°)]A,则电路的平均功率P为( )W。
  • A.
    (来学网)124.12
  • B.
    (来学网)128.12
  • C.
    (来学网)145.28
  • D.
    (来学网)134.28