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【判断题】
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。A.
正确
B.
错误
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举一反三
【单选题】What was Xiaoli doing?
A.
Xiaoli was watching TV in a hotel room in London.
B.
Xiaoli was shopping in a department store in London.
C.
Xiaoli was walking in a park in London.
【简答题】In fact they found the boat they would take is ______.
【单选题】When she heard it was snowing in the city they were going to, she ___ into her bag.
A.
donation
B.
sttuffed
C.
historical
D.
block
【简答题】When she heard it was snowing in the city they were going to, she two more sweaters into her bag.
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