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1820
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????????????????????????????????? 90%? 10%60???????10g

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1.???????????45??????????20???????????????????????????????????????????

2.???????????...

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1?15?10?3--5?100?????????
2?500???50??100????
3?2(1000)200?????????10--15???????
4???100??????30???
5??100??50?15????????
6?2????100??100??
7?60?3--5?100???????????????????
82?????????2????
9??????
10150???????????50??????????????????
11?1????????100??50???????...