?????????????????????

????:???????:500?????????

???1??????3?????? (??????????????????????? ??????????? ???????)????3???????

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

???15?????????,?????????

???10??????????????????,????????10????????????????“??????????????”????????????,??????,????????“????”??

????????????????????,???????6.2???,?????,??????550?????,???????

??,?????????,???????????????????????,????170???,??????

????,???,????????????????????????,???????160??????????????????,????5??????????????,????????6????????????,????10???,???????????20%?(?????????) ???:??