Shakespeare's sonnets are the only direct expression of the poet's oen feelings. AMong them, numbers ____ are addressed to a young man, beloved of the poet.
A.
1-20
B.
1-120
C.
1-126
D.
1-128
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举一反三
【多选题】Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks? ()
A.
The three required steps in the analog to digital conversion are sampling, encoding, and compression.
B.
The three required steps in the analog to digital conversion are sampling, quantization, and compression.
C.
The three required steps in the analog to digital conversion are sampling, quantization, and encoding.
D.
The output of the sampling process is a pulse code modulation (PCM) signal.
E.
The output of the sampling process is a pulse amplitude modulation (PAM) signal.