The weather in Beijing this morning is very bad. I rain in the morning, and the weather is angry, I have 7:45, I am still like evening, I really don't want to get it, but bite the teeth, stretched a lazy waist Still go to class, too lucky, the teacher is named, huh, huh, no white! Yeah! This morning, the class is << Discrete time signal analysis and processing >>, my biggest headache, have already said to Badworth DF The design, the teacher himself has a copy of the book on the blackboard, but I am looking at the clouds, although I really want to understand this class, I have a kind of feelings that have a sense of weakness ..... ..... Depressed weather, depressed mood ...
