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

2??????

3?????????

4????????

5??????

2??10????????,?????????,???????????(???)?,8?????????????????,?????????,???,??????

???,?????????,??????????3??????????????,?700????????????????????????????????????????????,?????????98.2%?

???(???)????8?????????,???????????????????????????????70?52???????,?20?????

????????????????,???2????????20????????????1??????15????????????????,???500????,?????(????????????????????? ??????????)

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