????:1?????????:??app??

2???????????

3??????????????

4???????

5?????

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15??2.2??

??????????????????????????15?,???????,??????,15?????2.2????????,????14%?

??????,15????????????33003400??,??????????????2???,?????????????????????????

??????,15?????????????????????1680??,??????14??????

??,?????????????15?????189??

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????“??????”?????????

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

??,????????,9????????????15????????????????

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??????,??????????????????????????????????????????????15%,???????????????????????????30%? ????????:???