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

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

3???????

4?????

5???????

????6??????????????????18??????????????????(????? ?????????)??A????????????????18?????????????(?????)??????,????????,??????

????,????????????????A?4.53%???????,????????????????20%??????,?????????10%?

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??,??????,???3030??????????????,??????????????0.48%;????9318???,????0.4%;????1811???,???????????0.29%?(??) ??:??