FIR滤波器的线性相位条件中有一定的对应关系，当相位函数为第一类时，对应的h(n)满足偶对称。
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线性相位FIR滤波器当零点在单位圆上，但不在实轴上时，零点的个数为2个
A. 对
B. 错
According to the speaker, what we need to do to get others like us on a date?
A. To show that we have a good relationship to ourselves (i.e. We can recognize our own failings.).
B. To show that we view the other person with a mixture of tenderness and realism (指出我们看待对方既温柔又现实).
C. To drop in a small warm tease(开个小玩笑) that shows our understanding of some less than perfect side of them.
D. To please and compliment them with endless sweet words.
According to the speaker, what are the most properly seductive things on a date?
A. Good looking (姣好的面容).
B. A silver tongue (流利的口才).
C. Self-knowledge (自我认知).
D. Perceptive generosity (感知力强的宽容).
计算机的编码知识中,下列叙述错误的是()。
A. 一个ASCII码在计算机内部是由八位二进制数构成的
B. 字形码通常有两种表示方式:点阵表示方式和矢量表示方式
C. GB2312-1980规定每个汉字用两个字节来表示
D. 计算机不能直接识别十进制数,但能直接识别二进制数和十六进制数
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