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【多选题】
一般语音信号的频率在300~3400Hz的范围内,把它看作是频带0~3400Hz的低通型信号,则当该信号的抽样频率为( )时,接收端可以无失真地恢复原始信号。A.
3400Hz
B.
6800Hz
C.
8000Hz
D.
9800Hz
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