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

2????????

3????????????

4?????????

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

??12?23?? (??)??,????,12??????23??????,????494??,??7.5????????????

???????????????????????????????12??,?,12??????1??21??,??142.5??,????13.9%,??6????????????????????

?????????????????????????????????????????????????????????????,?????????????????????????????????????????????????????????????90%?

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