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

2???????

3??????????

4???????

5???90????????

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

?????? ????:???,????????,??????,??????,???????????????????????????,??,?????????,???????????????,????????????,?20%?

??? ???:7???????5???????,???????????????? ??(??????????)???????4000??????,????????????80%????,???3000???????4000????????????

????????????? ????????????:?????????????,????????,??????????????????,?5???????????180???,????????????????,??????,???????????????,??3???5????

?????? ?????????????????:????200?????????????,??????????(????)???????????,???,???????

???,7????,???40% ???,????????????????????90%;??????????85%?????????????,??

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