????:1?500?????:95????????

2??????????

3?????

4?????

5??????

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

???????????,???2??????????,??????????????140??,??????????????????

?????????,????????????????????????649?????????????????????????37??????????

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

????????????? ????:??????5000????????????,????????????????,?????????????????90%?????????????

???????????????,??4.99???,???????5000???????????,????????????????,????????6.29???

?,????????????????????2000????????????????????19??,???????371????????????????265?,????????

???????,????????????????,???????,?,??????????????????????????,???400?????,????????

??? ???:??????????,??,???????????50?60???,???

??????????“???”“??”

?????????????????????????????????????“???”“????”?

????????,???????????49?????????,??5000??,????????????????????????????????????????,??????????????

???,???????????,??????????,??,?????????????????90?????,??,???????

????????? ???:?????????300?????????,????????30??,????????,?,???

????????????????????,??260???????????,???????????????,???????????1000??????????????

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

??????????? ???:???????????,????????????????????,??,????????????????????,?,???,???

????????????“?????????” ???????????

?????,????2400???????????????,????????2???????,???????????????1????????????????,????????????

??,???????85?????????,??????,???,????????????????????????????????????????,???????,???

???? ?:????????????????,?????????????????,??????????????????2.5????????,??5?????

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

??? ??:?????????100????????,??10000??????????,?????????????,???????????????,???

???????????????,?????????,????????????????????????????????????????,?????????????????????????????,??????21.4??,????????

??? ????????:??,???,?????????????800??????????????,?????1280???

(?? ????????? ??????? ???????????? ?????????????????) ????????????:???