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【多选题】
关于Z变换说法正确的是?
A.
Z变换的定义式如下：
B.
已知f(t)采样后波形的函数为f*(t)，由f(t)能够获得的f*(t)，但是f*(t)还原成连续函数不一定是f(t)
C.
对于Z变换
D.
对于Z变换 ， F(z)与f(t)是一一对应的。
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【多选题】Which of the following phrases are negatively associated with celebrities?
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