假设信源是由q个离散符号S1,S2,…,Si,…Sq所组成的符号集合,集合中的每个符号是独立的,其中任一个符号出现的概率为P(Si),并满足∑P(Si)=1。那么符号Si含有的信息量I(Si)等于( ),单位是( ) A. –logq P(Si) B. logq P(Si) C. -log2 P(Si) D. log2 P(Si)@@@SXB@@@A.比特 B.信息熵 C. dB D.无单位
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【单选题】He saw writers and artists as being important to the state for they could ______ credibility on the regime.
【单选题】Writers, artists and composers we consider “modern” had their roots in the ( ) era which produced such writers as Joseph Conrad, E. M. Forster, W. S. Maugham, etc.