有次看录像,好象是信号处理的课,教授讲因式分解,下面稀稀拉拉几人坐着。怪不得孩子说一次一门数学课,二百多人只有一个人参加。
有次看录像,好象是信号处理的课,教授讲因式分解,下面稀稀拉拉几人坐着。怪不得孩子说一次一门数学课,二百多人只有一个人参加。
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