????:1?????100????:?????

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

3??????????

4?????????

5?????

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

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

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

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

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

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

???:???????