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

2????????

3??????????

4?????????

5??????????

?1??2??????????? (?? ????????)1????2??10???????01?????????????????16?43???????????,????????????????4.8???4.6?,??????10???????????????????????????,?2????????4?????????????????????????????????,???????,????????????????,????????,??????????????,????????????????

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

??,??69????????21??,?????????????????????????????,???????95?????????????????????,??,????????????????,???????????????,??

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

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