题目内容
As a result of ____, the negative morpheme in imperfect and impossible is “im-” rather than “in-”.
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The morphological process of ____does not give rise to a new lexeme, but only yields different word forms of the same lexeme.
A morpheme is different from a phoneme, but it is identical with a syllable.
实现相同指标的数字滤波器，IIR数字滤波器的阶数一般比FIR数字滤波器的阶数低
FIR数字滤波器一定稳定，而IIR数字滤波器不一定稳定，但两者都可以设计成线性相位系统。
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