????????2???????????????????12???(? ?????????)?12?????,??,?,?????????????????????????,???,????????20%?

2??12????,???????????????????????? ?

????????????,???????????????????,?15%?

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????????????2????????????5??,????????????????????(????????????)

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?? ?????????????????????20%

????:1?????????:??95?

2??????

3????????

4???????????

5????95??

????????2???????????????????12???(? ?????????)?12?????,??,?,?????????????????????????,???,????????20%?

2??12????,???????????????????????? ?

????????????,???????????????????,?15%?

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????????????2????????????5??,????????????????????(????????????)

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