试题详情
- 多项选择题多计量函数式是 ( 难度:4)
A、r=(1-e-nkτ)/( 1-e-kτ)
B、r=(1-e-nkt)/( 1-e-kt)
C、r=1/(1-e-kτ)
D、r=1+e-kτ+e-2kτ+……+e-(n-1)kτ
E、r=1+e-kt+e-2kt+……+e-(n-1)kt
- A,D
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A、r=(1-e-nkτ)/( 1-e-kτ)
B、r=(1-e-nkt)/( 1-e-kt)
C、r=1/(1-e-kτ)
D、r=1+e-kτ+e-2kτ+……+e-(n-1)kτ
E、r=1+e-kt+e-2kt+……+e-(n-1)kt
关注下方微信公众号,在线模考后查看