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

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

3?????????95?98?

4????????????

5???????

?????2???14?? (??????????????? ????)???????????????????14??????????,?????????????????2????????????8????,?????????50????????13??,????????????5.3?????,????????75%?

??????? ?

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

???,??????770?????????????,?????1?????10?1????????22.5????6??,??????????????????????????,??

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

????,????????????“??????”????????????“???”?????????

??,??????????3???????????,?????7500?,??????????????95%????,??????????

??????????,?96.8%,???2.2%,???1%,?????????????????????

????,??????,???,??????????????????????????????,??????????????,?????????????????????????????????(???????????????????????)

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