????:1????????????:??????????

2???t?

3?????????

4??????????

5??????50??

??????????12????????????26??? ????,????????????????,??16.2???,??4.7??,?????2.5???;?????8000??,?????3000?????????,????2300???

?????,??43????????,??11.7%???;????????????51.8??,??3%???????????????????,???

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