?? 1.4??????????????42.8???????
????:1???????:??400??
2?????????
3????????????
4????????
5??????
???????1?????????7??9????????5?????,????????????????6.8???????????,???????????????,???
?,???????????????
???????????????????????????????????????????????????,???
???????,????????????????????????,???????????;????;???;????????,??
??(1???????????8???????????)?11???????????????,??????????????????????????????????????????????????1.4?????????,??????????????????????????????????????????,??????????????42.8???
??,?????????????????????????,???????(??) ?????:??