?? ????31.9??? ???????????????14.5%
????:1???????:??????
2?????
3?????150
4?????vx
5???????
??????????:????11??22????,??10??,?????????????31.9??,????14.5%??????,?7.9????,??48.0%;????4.9???????,????????20.3%?110???,???7181??,???8.3%;???????????4502?????,???20.7%?
???:?????????????????