?? ????31.9??????????????? ???14.5%
????:1???????????:????
2?c????????
3??????????
4??????
5?????????500???
??:???11????22????????????????,???10???,?????????????31.9??,????14.5%???,??????????7.9?????,????48.0%;?4.9?????,???????20.3%?110???,??7181????,??8.3%;??4502???????????,????20.7%?
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