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

2??????

3???????

4??????????

5???????????

???8??20?? (??????? ???????????)20????????????,?A??????????:????,????????????A????“??”?

??,???1.91%,?2.28???(??????????,??),??????????2.26??,?????????A????

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

????A????,????0.1%,???????????????“???????”,?????????20%,??????,????????????????????,?????????,?????????“????”?????????

??,???????????????????,??:???,????;?;?????????????????

?????????,????,???????????????????????????????2866????,?0.93%;???8252??????????,?1.24%;????????1567??????????????,?1.34%?(??) ?????:????