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

2?????????

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

4???????

5???????

?9????27???????? (?? ?????????????)????????????27?,????????????????,??19.4??????????,??????????2.77???????????

????????,???????80%,??15.26????,?????????????????20%???????????????????,????

???????????10???1??????????,???10??5???????????????????,??????9??30??,????????????,??????,??????????????????????????,??????

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

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