作者简介:GUO Ji-dong（1965－）,male,native of Yuncheng,Shandong,an associate professor of Yili Teacher’s College,engages in analytic function；LOU Zeng-jian（1963－）,male,native of Qufu,Shandong,a professor of Qufu Normal University,engages in analytic function．
About author:GUO Ji-dong（1965－）,male,native of Yuncheng,Shandong,an associate professor of Yili Teacher’s College,engages in analytic function；LOU Zeng-jian（1963－）,male,native of Qufu,Shandong,a professor of Qufu Normal University,engages in analytic function．
