????:1???????:?????????

2?????????

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

4?????????

5???????

??,??,?????????12????,?????????????????12???,?????????41.5%,??????????500????,??2.97??????,???????242????

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1450????????

??,???????????1450????,??,?????????????????

????????????????????????????22???????“??”,???????????????????“??”,???????41.5%?

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