?? ???????“???????”???????? ??“??”?
![](http://n.sinaimg.cn/news/transform/200/w600h400/20180317/EAkG-fysisrs4987909.jpg)
????:1?????:?????????????
2???????
3??????
4????????
5??????????
????????,“??BA”“??”“????????”???????????“??”??????????,????????????“??”???????????
???????????????????,????????“??????????????”???????????????????
???????? ??:“???????????”????????,?????????,???????
???????????,?????????“??????????”,??????????????????,???????????,???????????“???”,?????????????,???????
?? ??????:????????????????99???800??????????,??????,?????????
??“???”??????????,???100?????????????????????????????,????????????????,?“??????”?????????,“??+???”?????
???????“???????????”?????????? ???:“??”????????????,????,???????,?????,???
???????????,??,?????????????????????????,????????????????,??????????????????????????,?????????,????“?????????????????”?,??????
????? ???:?????????????????????????????????????????????????????,????,????????,????
???????????????????????????????????????“????”???????????
??? ??:??,?????????????,???????“?”?“??”??,????
??????60??????????,???????????????????“???????????”??,???????????,“??????”??????,??????????,??????????????????????????,???????,???????,?????,??????????,???? ?????:???????????????????