????:1???100???????:??????????

2????????

3???200????????

4???600??

5?????

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????????????????????,????2.8?????????,?0.6?????????????,?????????????????????,??10926.4???????????????,?3000???????????,??????1???????????????????,??????????50%?????????230?,?????????????????50%????70%,??700??????????????????????????????,?????????????????,?????????????????2000?,?380????????,??????120???????????

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