????:1????????py:????????

2?????

3???????

4??????

5??????

???:??????,????,????,???????????????????????,??10??,??8600??,??

??,??????????????????????,??????????“????????”,?????15%??????????????????,??2???????????????????,??,?????????

??????????????????????????????“??”?????,??????????

?????????????????????,1????10????????????,???8680.82???????????????

?????????:????????????????????? ?????????????

??????“????????????”????,????????????????,???????500??????????

??,??,??????????????

?????????5??,????“????????????”????????,??????????????????????????,10???????????????????,???????3.9???????????????,????????????????63%?

?,??????????2000????,300??7?????????????

????????????????,?????????????10??????,??????????????????5%?

??:“??,?,???”

????????:??????????????????????????