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Is that true that using more harmonics is better than using just a few harmonics?

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We can achieve unlimited bandwidth, as the harmonics we use are unlimited.

Go back N protocol

A. requires larger receiving window
B. suitable for network with low high rate
C. max sending window size is the max sequence number
D. receiving window size should be larger than max sequence number

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Amongst the 6 elementary DLL protocols:

A. Simplex stop-and-wait protocol uses piggybacking;
B. For go-back-n protocol, receiving window = 1;
C. For go-back-n protocol, sending window = MAX_SEQ;
D. For selective repeat protocol, the sending window <= MAX_SEQ.

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电磁波在导体中的趋肤深度有如下规律：电磁波频率越高，趋肤深度越；电导率越大，趋肤深度；磁导率越大，趋肤深度浅。（注：横线上填入“深”或“浅”）

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Is that true that using more harmonics is better than using just a few harmonics?

We can achieve unlimited bandwidth, as the harmonics we use are unlimited.

Go back N protocol

Amongst the 6 elementary DLL protocols:

电磁波在导体中的趋肤深度有如下规律：电磁波频率越高，趋肤深度越 ______ ；电导率越大，趋肤深度______ ；磁导率越大，趋肤深度浅。（注：横线上填入“深”或“浅”）

电磁波在导体中的趋肤深度有如下规律：电磁波频率越高，趋肤深度越；电导率越大，趋肤深度；磁导率越大，趋肤深度浅。（注：横线上填入“深”或“浅”）