题目内容

利用矩形窗、Hann窗、Hamming窗和Blackman窗设计的FIR数字滤波器相比，矩形窗所设计的滤波器通、阻带波动最小，过渡带最窄。

A. 对
B. 错

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The allomorphs of a morpheme may differ in meaning and function.

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