???????????????

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

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

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

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

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