A、<span style=";font-family:宋体;font-size:16px">定量信息特征</span></p><p></p>
B、<span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">等级特征</span> </span></p><p></p>
C、<span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">数量特征</span> </span></p><p></p>
D、<span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">定性信息特征</span> </span></p><p></p>