?? ???31.9??????????????? ????14.5%
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2?51??app????
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??????????:????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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