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【单选题】
某语音信号的最高频率为3400Hz，根据低通信号的抽样定理， 对该信号进行抽样的斯特抽样速率是 。A.
6800Hz
B.
3400Hz
C.
1700Hz
D.
6000 Hz
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A.
anything
B.
something
C.
everything
D.
nothing
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A.
is of little use to the army
B.
is without equal
C.
is nothing but a dead soldier
D.
easily gets killed in a battle
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A.
nothing but
B.
anything but
C.
above all
D.
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