【简答题】"For oft, when on my couch i lie/ In vacant or in pensive mood,/ They flash upon that inward eye/ Which is the bliss of solitude". What does the underlined "They" refer to ? ______.
【简答题】Suppose that two channels are to be connected end to end to forma composite channel. Each of the original channels is a binary symmetric channel with crossover probabilityε.Suppose that the output of ...