单项选择题
Which of the following is NOT true about Rockefeller? ...
单项选择题Which of the following is NOT true about Rockefeller? A. He influenced his families by his word and deed on how to behave like upper class people. B. He started from scratch（白手起家）and became the oil magnate of his age. C. He accumulated great wealth and spent half of his fortune on philanthropic works.
与神经性贪食正患者不同,厌食症患者不会出现暴饮暴食()
判断题与神经性贪食正患者不同,厌食症患者不会出现暴饮暴食()
某二进制信源，各符号独立出现，若“1”符号出现的概率为3/4，则“0”符号的信息量为( )bit。A. 1...
单项选择题某二进制信源，各符号独立出现，若“1”符号出现的概率为3/4，则“0”符号的信息量为( )bit。 A. 1 B. 2 C. 1.5 D. 2.5
