When the input of an LTI system is x[n], the output is y[n], then when the input is 2x[n-3], the output is ( ).
A、y[n-2];
B、2y[n-3];
C、3y[n];
D、y[n]
发布时间：2025-07-24 15:08:21
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答案：2y[n-3]
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