????:1????600??????:???????

2???????

3???????

4????????100???

5??????

2??????12????,??????????,??????

??,???????????????,???????????98%????,????????????????4?????????“???”,“??”???

???,??????,??“??????”??????,??????????????????“??????????”????,??????????????????????“???”????????“?”,?,???????????(?????????? ??????????? ????????????? ???)

????:??????