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

2???????

3??????????

4??????50???

5??????

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

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

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

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

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

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

????:?????