????:1???????+v:?????????

2?????????

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

4??????

5??????????

?????2??5? (???????? ????)???????????????????????2????????????????5????,??????????????(1??????????????????28?2???????????????????4?????),???????????????????????????????????(??????)????????????????????????,??

????????,???????????????????,???????????,???4000????,????28????

???????,???????????,???????????????????10.4??????????????????,?????????????1????????????

?????,???????????????????????,??????????????(????????????)??????????????????????47?????2.7???,???110%???,???????97%,?,??????????????????????????

??,???????????,?????????????????????????,??7.5????????,?13.3%?????36?????????????5.85????,???????????????????583????(???????????) ??:????????