????:1?????90????????:??????

2??????????

3????????

4??????????

5???????????

??(9???5?????????),??,?????

?????????????????????,??“???”,??????????,??:??

?7??,

????1200???,

???27???????42?????70???????80?????,

???????????????40???2??10????????????7??42???????????????

?????????????????????????????????????,??70%????????????,????13???

?,????????,???????????,

??1.75?????????????,

??????????????1.22??????????,

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