The primary purpose of ______ is to map the binary information sequence into signal waveforms.
A、source encoder
B、channel encoder
C、digital modulator
D、digital demodulator
A、source encoder
B、channel encoder
C、digital modulator
D、digital demodulator
The primary purpose of this passage is to ______.
A.report facts
B.call for action
C.argue for a new perspective
D.condemn a social phenomenon
For what primary purpose was the Aswan Dam built?
A.Traffic.
B.Irrigation.
C.Electricity.
The primary purpose of the text is to
A.provide support for a hypothesis.
B.reconcile opposing viewpoints.
C.refute a common misconception.
D.analyze an argument in detail.
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