单项选择题

A.IΔ>30mA,TΔ=0.1S
B.IΔ=30mA,TΔ>0.1
C.IΔ>30mA,TΔ>0.1S
D.IΔ>30mA,TΔ>0.1S,IΔ²TΔ≯30mA20.1S