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某系统的微分方程为为yy′′(t)+3y(t)==2ff′′(t)则系统的阶跃响应g(t)

单选题
2021-09-01 20:28
A、2e-3ttεε(t
B、e-3ttεε(t
C、2e3ttεε(t
D、e3ttεε(t
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正确答案
C

试题解析

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