● Although a given waveform. may contain frequencies over a very broad range, as a practical matter any transmission system will be able to accommodate only a limited band of （71） . This, in turn, limits the data rate that can be carried on the transmissi
（71）
A、frequencies
B、connections
C、diagrams
D、resources（72）
A、procedure
B、function
C、route
D、medium（73）
A、source
B、bandwidth
C、energy
D、cost（74）
A、frequency
B、energy
C、amplitude
D、phase（75）
A、small
B、limited
C、infinite
D、finite（71）
A、
发布时间：2024-09-29 03:39:02
